Aerodynamic Characteristics of Sedan with the Rolling Road Ground Effect Simulation System
|
|
- Eustace Reed
- 5 years ago
- Views:
Transcription
1 Vehicle Engineering (VE) Volume 2, Aerodynamic Characteristics of Sedan with the Rolling Road Ground Effect Simulation System Yingchao Zhang 1, Linlin Ren 1, Kecheng Pan 2, Zhe Zhang* 1 1 State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun , China 2 China FAW group corporation R&D center, Changchun , China * zhangzhejlu@jlu.edu.cn Abstract The rolling road ground effect simulation system is one of the key factors affecting the accuracy and reliability of automotive wind tunnel test. It is necessary for wind tunnel experiments to reduce the influence of ground boundary layer effect in wind tunnel. In this paper, several CFD simulations were carried out to investigate the turbulence airflow and its differences with the wheel-rotation and the under-hood flow field. And the car model is one productive car model designed by Audi. It simulated the different flow field of automotive wind tunnel with or without ground effect rolling road system respectively based on Star - CCM+ CFD code. These works focus on the following three parts: first is setting up monitoring points in different positions of flow field, second is monitoring their velocity through vector and streamlines, and third is analyzing the two cases by comparing them. Rolling road system with belt width bigger than car width has great effect on accelerating the air velocity near the ground at the bottom of the model to control the ground boundary layer development around model. In the flow field behind the model, using the rolling road system with wide belt is a wise choice to reduce the velocity of the wake flow near the ground. Keywords Automotive Wind Tunnel; CFD; Aerodynamics of Road Vehicle; Ground Effect Introduction As one of the most important features on automobile, automotive aerodynamic characteristic has a close relationship with the related characteristics of the internal and external flow field near the automobile. Automotive wind tunnel is the main test site, in which we analyze and verify the aerodynamic theory and the corresponding parameters in experimental study, so a lot of important conclusions on automotive aerodynamics are derived from it. Nowadays there are many tunnels in use around the world, so Jilin University s building its own automotive wind tunnel is a substantial beginning of automotive wind tunnel test theory and technology development in China. Jilin University wind tunnel adopted the widely used rolling road system with belt to reduce the ground effect in wind tunnel test. In wind tunnel test, there are boundary layers near the test ground in flow field, which does not tally with the actual driving conditions, and will reduce the reliability of results. The above phenomenons are named as ground effect of Wind tunnel test. Many studies have shown that too thick boundary layer is to be generated near test ground due to the ground effect of Wind tunnel test, which will directly influence the measuring results of six-component force in wind tunnel test and reduce the measured drag coefficient of the car. In this paper, in order to supplement the domestic wind tunnel test techniques in theory and improve the domestic wind tunnel test techniques, we analyzed the influence of broadband rolling road system on wind tunnel test after simulation. Simulation Details In order to reflect the condition differences between wide belt rolling road and without rolling road more factually, the digital model is quite similar to a real one, as shown in Fig
2 Vehicle Engineering (VE) Volume 2, 2014 FIG. 1 DIGITAL MODEL OF A CAR USED IN CFD When building the model, its engine compartment structure was retained to ensure the validity and authenticity of the results, which can simulate the airflow s influence on ground effect when entering engine compartment from air-inlet grille and one kind of parts such as mirrors were also retained. As a result, the CFD simulation based on this digital model is more reliable and significant. some parameters of the model: Scale 1:2, overall length 2424mm, overall width 971mm, overall height 721mm, wheelbase mm. model details: Main components in chassis: aisles exhaust pipe, fuel tank, spare tire compartment, air-inlet grille, engine, simplified engine nacelle, wheels with hub, wheel cover cavity, mirrors and doorknobs. The computational domain s width is about 5 times wider around each car model width. The distance from the domain s inlet to the front body is about 5 times vehicle length and that from domain s outlet to the rear body is about 10 times vehicle length meanwhile that from domain s top to the body top is about 5 times vehicle height. The parameters of the domain are displayed as follows: 37m long, 10m wide, 4.154m high, and all these are showed in Fig. 2. FIG. 3 FINAL VOLUME MESH According to the requirements of the simulation, the needed physical models were chosen as follows: three dimensional, steady, segregated flow, ideal gas and turbulent. The velocity in this simulation is respectively 80, 100, 120, 140 and 160. The front side of the domain was set as velocity inlet with 80, and the back side was set as pressure outlet with 0Pa. The other three sides were all slip boundaries and the model surface was wall. Table1 displays the initial conditions in this simulation. TABLE 1 INITIAL SIMULATE CONDITION Items Initial Condition Inlet Velocity Inlet Outlet Pressure Outlet Atmospheric Pressure Standard Atmospheric Pressure Air Density 1.205kg/m3 Turbulence Model Standard K-Epsilon State of Wheels Rotating CPU 8 cores Memory 16G Iterations 1800 Results and Discussions Values of drag coefficient and lift coefficient in each condition can be obtained from the simulation. After finishing 1800 iterations, the drag coefficient Cd and coefficient Cl have been stable, and this can be seen in Table 2 and Table TABLE 2 CALCULATION RESULTS OF CD Slip Sta ΔCd TABLE 3 CALCULATION RESULTS OF CL FIG. 2 COMPUTATIONAL DOMAIN In this paper, having considered factors such as the computer load, we eventually adopted core hexahedron mesh to obtain better grid quality. To emphatically analyze the ground effect, we increased the density of the flow field mesh at the bottom model, around the adjacent parts and near the rear model in simulation, which can improve the mesh quality around the model. The mesh conditions are showed in Fig Slip Sta Sta in Table 2 refers to having not a mobile belt (the ground of mobile area is stationary); slip refers to having a mobile belt. It can be seen that Cd and Cl in mobile ground system are higher than those in ground system without moving belt, and this because the mobile ground system improved the flow field quality near ground surface under the model body. 32
3 Journal Title Volume XX Issue XX, Month Year Journal Website A. GROUND SYSTEM WITH MOVING BELT B. PRESSURE DISTRIBUTION AT TOP MODEL FIG. 5 PRESSURE ON MODEL MIDDLE PLANE B. GROUND SYSTEM WITHOUT MOVING BELT FIG.4 VELOCITY DISTRIBUTION ON MODEL MIDDLE PLANE Velocity distribution pictures can be obtained from the simulation, just like Fig. 4 under the condition of 160kph. From the velocity distribution in B, we can see that there is a boundary layer with a certain thickness caused by ground effect which can make the airflow near ground delays. While the ground system with moving belt increased the velocity near the ground surface under front seats, and generated more severe eddy current in the central aisle when compared with the ground system without moving belt. At the same time, the moving belt improved the velocity near the ground under model rear. In Fig. 5, the pressure distributions on middle plane of the model in different systems (ground system with moving belt and ground system without belt) are similar. However, the surface pressure at rear bottom of the model on moving belt is a little higher than that in ground system without moving belt. FIG. 6 PRESSURE ON MOVING BELT MIDDLE PLANE Comparing curves in Fig. 6, we find that the moving belt can reduce the surface pressure of the back moving belt and that on moving belt surface (Z=0m). Values of monitoring points on X=1.5, Y=0 are showed in Fig. 7. FIG. 7 VELOCITY DISTRIBUTION ON X=1.5, Y=0 The airflow s direction changed to opposite X direction on X=1.5, Y=0, in which situation the ground system with moving belt had multiple effects on the airflow velocity near ground: A. PRESSURE UNDER MODEL Increasing the minimum velocity of the opposite X direction at the above position; 33
4 Vehicle Engineering (VE) Volume 2, 2014 Decreasing the maximum velocity of the opposite X direction at the above position; As a whole, the moving belt makes the airflow distribution more uniform. In order to analyze the above phenomenon more deeply, we compared it with other results. The velocity distribution on section of Z=-0.13 at 160kph in ground system with moving belt is showed in Fig.8. It is not difficult to find that there is a large area near ground locating at the middle-rear part of the model, in which the velocity is opposite to X direction. In Fig. 9, there is one large and one small eddy current at the middle-rear part of the model, and the above two phenomenons can explain why the Cd values in system with moving belt is higher. Further analysing velocity scalar of region Z = and streamlines at the model bottom, we can find the airflow in moving region along negative X axis is substantially located around the engine outlet, and scatters along the body edge, as shown in Fig. 10, in which the airflow also moving to wheels. Inferred from the above analysis, the airflow was forced by the high-pressure zone near the outlet and the wheels rolling disturbance.to be split along both sides at the model bottom. Conclusions Basing on the above analysis, we can draw the following conclusions: FIG. 8 VELOCITY ON HORIZONTAL SECTION (Z=-0.13) The ground system with moving belt can accelerate the airflow on ground surface to reduce the thickness of boundary layer, and disturb the viscous flow under the model. The moving belt can control the development of the ground boundary layer under the model. FIG. 9 VELOCITY STREAMLINES UNDER MODEL BODY Although the flow field condition near ground can be kept well at the back of the model and the moving belt as a result of the moving belt s accelerating effect, the moving belt can t inhibit the development of boundary layer so well as before. The faster the inflow velocity is, the more obvious the moving belt s accelerating effect is and the more effective the moving belt s improvement on boundary layer is. A.VELOCITY VECTOR ON SECTION OF Z=-0.13 Using moving belt can make the pressure in moving belt surface area and the back area of the moving belt lower. The pressure distribution on middle plane of the model in condition of using moving belt is similar with that in condition of not using moving belt. ACKNOWLEDGMENT B.VELOCITY VECTOR AT X=1.5 FIG. 10 VELOCITY VECTOR (Z=-0.13, X=1.5) Thanks for China's postdoctoral fund (2012M & 2012T50314) and Hong Kong scholars program s support. 34
5 Journal Title Volume XX Issue XX, Month Year Journal Website REFERENCES Ahmed F, Abdel Gawad. Aerodynamics of Vehicles Through Driving Tunnel-Experimental Study of Interference and Drag Reduction. SAE Paper: Antonello Cogotti. A Parametric Study on the Ground Effect of a Simplified Car Model. SAE Paper: Berndsson A, Eckert W T and Mercker E. The Effect of Groundplane Boundary Layer control on Automotive Testing in a Wind Tunnel. SAE Paper: Gerhard Wickern, Stefan Dietz and Ludger Luehrmann. Gradient Effects on Drag Due to Boundary-Layer Suction in Automotive Wind Tunnels. SAE Paper: Hucho W.H. Aerodynamics of Road Vehicle. SAE Paper: 2002, 24(5). Marcum D, Gaither J. Mixed Element Type Unstructured Grid Generation for Viscous Flow Applications. AIAA Paper: 1999(14). Wiedemann J. The Influence of Ground Simulation and Wheel Rotation on Aerodynamics Drag Optimization- Potential for Reducing Fluid Consumption. SAE Paper: Zhang, Y., Zhang, Z., Li, J., Shao, S. et al. Test Process and Correction of Automotive Wind Tunnel in Jilin University China. SAE Technical Paper:
Analysis of Aerodynamic Performance of Tesla Model S by CFD
3rd Annual International Conference on Electronics, Electrical Engineering and Information Science (EEEIS 2017) Analysis of Aerodynamic Performance of Tesla Model S by CFD Qi-Liang WANG1, Zheng WU2, Xian-Liang
More informationInfluence of Ground Effect on Aerodynamic Performance of Maglev Train
2017 2nd International Conference on Industrial Aerodynamics (ICIA 2017) ISBN: 978-1-60595-481-3 Influence of Ground Effect on Aerodynamic Performance of Maglev Train Shi Meng and Dan Zhou ABSTRACT Three-dimensioned
More informationEFFECT OF SPOILER DESIGN ON HATCHBACK CAR
EFFECT OF SPOILER DESIGN ON HATCHBACK CAR Ashpak Kazi 1 *, Pradyumna Acharya 2, Akhil Patil 3 and Aniket Noraje 4 1,2,3,4 Department of Automotive Engineering, School of Mechanical Engineering, VIT University,
More informationTurbostroje 2015 Návrh spojení vysokotlaké a nízkotlaké turbíny. Turbomachinery 2015, Design of HP and LP turbine connection
Turbostroje 2015 Turbostroje 2015 Návrh spojení vysokotlaké a nízkotlaké turbíny Turbomachinery 2015, Design of HP and LP turbine connection J. Hrabovský 1, J. Klíma 2, V. Prokop 3, M. Komárek 4 Abstract:
More informationEffect of Stator Shape on the Performance of Torque Converter
16 th International Conference on AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 16 May 26-28, 2015, E-Mail: asat@mtc.edu.eg Military Technical College, Kobry Elkobbah, Cairo, Egypt Tel : +(202) 24025292
More informationStudy on Flow Characteristic of Gear Pumps by Gear Tooth Shapes
Journal of Applied Science and Engineering, Vol. 20, No. 3, pp. 367 372 (2017) DOI: 10.6180/jase.2017.20.3.11 Study on Flow Characteristic of Gear Pumps by Gear Tooth Shapes Wen Wang 1, Yan-Mei Yin 1,
More informationOptimization of Hydraulic Retarder Based on CFD Technology
International Conference on Manufacturing Science and Engineering (ICMSE 2015) Optimization of Hydraulic Retarder Based on CFD Technology Li Hao 1, a *, Ren Xiaohui 1,b 1 College of Vehicle and Energy,
More informationVirtual Flow Bench Test of a Two Stroke Engine
Virtual Flow Bench Test of a Two Stroke Engine Preformed by: Andrew Sugden University of Wisconsin Platteville Mechanical Engineering ME: 4560, John Iselin 01.05.2011 Introduction: As an undergraduate
More informationInfluence of pantograph fixing position on aerodynamic characteristics of high-speed trains
DOI 1.17/s4534-17-125-y Influence of pantograph fixing position on aerodynamic characteristics of high-speed trains Liang Zhang 1 Jiye Zhang 1 Tian Li 1 Weihua Zhang 1 Received: 28 September 216 / Revised:
More informationAPPLICATION OF STAR-CCM+ TO TURBOCHARGER MODELING AT BORGWARNER TURBO SYSTEMS
APPLICATION OF STAR-CCM+ TO TURBOCHARGER MODELING AT BORGWARNER TURBO SYSTEMS BorgWarner: David Grabowska 9th November 2010 CD-adapco: Dean Palfreyman Bob Reynolds Introduction This presentation will focus
More informationNUMERICAL INVESTIGATION OF PISTON COOLING USING SINGLE CIRCULAR OIL JET IMPINGEMENT
NUMERICAL INVESTIGATION OF PISTON COOLING USING SINGLE CIRCULAR OIL JET IMPINGEMENT BALAKRISHNAN RAJU, CFD ANALYSIS ENGINEER, TATA CONSULTANCY SERVICES LTD., BANGALORE ABSTRACT Thermal loading of piston
More informationEFFECTS OF LOCAL AND GENERAL EXHAUST VENTILATION ON CONTROL OF CONTAMINANTS
Ventilation 1 EFFECTS OF LOCAL AND GENERAL EXHAUST VENTILATION ON CONTROL OF CONTAMINANTS A. Kelsey, R. Batt Health and Safety Laboratory, Buxton, UK British Crown copyright (1) Abstract Many industrial
More informationFLOW AND HEAT TRANSFER ENHANCEMENT AROUND STAGGERED TUBES USING RECTANGULAR VORTEX GENERATORS
FLOW AND HEAT TRANSFER ENHANCEMENT AROUND STAGGERED TUBES USING RECTANGULAR VORTEX GENERATORS Prabowo, Melvin Emil S., Nanang R. and Rizki Anggiansyah Department of Mechanical Engineering, ITS Surabaya,
More informationEFFECT OF SURFACE ROUGHNESS ON PERFORMANCE OF WIND TURBINE
Chapter-5 EFFECT OF SURFACE ROUGHNESS ON PERFORMANCE OF WIND TURBINE 5.1 Introduction The development of modern airfoil, for their use in wind turbines was initiated in the year 1980. The requirements
More informationA Parametric CFD Study of a Generic Pickup Truck and Rear Box Modifications
Abstract A Parametric CFD Study of a Generic Pickup Truck and Rear Box Modifications Wael Mokhtar; Md Maruf Hossain, and Samira Ishrat Jahan, School of Engineering, Grand valley State University, Grand
More informationAerodynamic Study of the Ahmed Body in Road-Situations using Computational Fluid Dynamics
Aerodynamic Study of the Ahmed Body in Road-Situations using Computational Fluid Dynamics R. Manimaran Thermal and Automotive Research Group School of Mechanical and Building Sciences VIT University (Chennai
More informationAerodynamic Drag Assessment
Aerodynamic Drag Assessment Computer Fluid Dynamics (CFD) analysis was used in the ULSAB-AVC Program to evaluate the aerodynamic concept from the very beginning of vehicle concepts. 11.1 BACKGROUND A vehicle
More informationInternational Journal of Scientific & Engineering Research, Volume 5, Issue 7, July-2014 ISSN
ISSN 9-5518 970 College of Engineering Trivandrum Department of Mechanical Engineering arundanam@gmail.com, arjunjk91@gmail.com Abstract This paper investigates the performance of a shock tube with air
More informationAnsys-CFX Analysis on a Hatch-Back Car with Wheels and without Wheels
ISSN (ONLINE): 2321-3051 INTERNATIONAL JOURNAL OF RESEARCH IN AERONAUTICAL AND MECHANICAL ENGINEERING Ansys-CFX Analysis on a Hatch-Back Car with Wheels and without Wheels Roopsandeep Bammidi 1, Dr.B.V.Ramana
More informationAerodynamics of cars Drag reduction
Aerodynamics of cars Drag reduction Alessandro Talamelli Johan Westin Mekanik/KTH 1 Outline General remarks on drag of cars How to analyse drag Local origins of drag Individual details and their contribution
More informationVehicle Aerodynamics Subscription Development of Numerical Simulation Method of Flow Around Automobile Using Meshfree Method
Vehicle Aerodynamics Subscription 2005-01-0544 Development of Numerical Simulation Method of Flow Around Automobile Using Meshfree Method 2005-01-0545 A Downforce Optimization Study for a Racing Car Shape
More information(1) Keywords: CFD, helicopter fuselage, main rotor, disc actuator
SIMULATION OF FLOW AROUND FUSELAGE OF HELICOPTER USING ACTUATOR DISC THEORY A.S. Batrakov *, A.N. Kusyumov *, G. Barakos ** * Kazan National Research Technical University n.a. A.N.Tupolev, ** School of
More informationVEHICLE AERODYNAMICS The drag
VEHICLE AERODYNAMICS The drag KTH, May 2011 by Rossi 2002 (University of Bologna) Alessandro Talamelli KTH-Mekanik University of Bologna 1 Cars are bluff bodies? All cars are bluff bodies but not all with
More informationResearch on Optimization of Bleed Air Environment Control System of Aircraft Xin-ge WANG, Han BAO* and Kun-wu YE
2017 International Conference on Electronic, Control, Automation and Mechanical Engineering (ECAME 2017) ISBN: 978-1-60595-523-0 Research on Optimization of Bleed Air Environment Control System of Aircraft
More informationA LES/RANS HYBRID SIMULATION OF CANOPY FLOWS
BBAA VI International Colloquium on: Bluff Bodies Aerodynamics & Applications Milano, Italy, July, - 8 A ES/RANS HYBRID SIMUATION OF CANOPY FOWS Satoru Iizuka and Hiroaki Kondo Nagoya University Furo-cho,
More informationDesign of a Custom Vortex generator Optimization of Vehicle Drag and Lift Characteristics
Design of a Custom Vortex generator Optimization of Vehicle Drag and Lift Characteristics Naveen. S 1, Vipin Prakkash 2, Sukanth Kannan 3 1, 2, 3 Senior Engineer, Sharda Motor Industries Limited R&D, Chennai,
More informationChina. Keywords: Electronically controled Braking System, Proportional Relay Valve, Simulation, HIL Test
Applied Mechanics and Materials Online: 2013-10-11 ISSN: 1662-7482, Vol. 437, pp 418-422 doi:10.4028/www.scientific.net/amm.437.418 2013 Trans Tech Publications, Switzerland Simulation and HIL Test for
More informationCOMPRESSIBLE FLOW ANALYSIS IN A CLUTCH PISTON CHAMBER
COMPRESSIBLE FLOW ANALYSIS IN A CLUTCH PISTON CHAMBER Masaru SHIMADA*, Hideharu YAMAMOTO* * Hardware System Development Department, R&D Division JATCO Ltd 7-1, Imaizumi, Fuji City, Shizuoka, 417-8585 Japan
More informationChangchun, China. 1 State Key Laboratory of Automotive Simulation and Control, Jilin University, 5988 Renmin Street
Applied Mechanics and Materials Online: 2014-05-23 ISSN: 1662-7482, Vols. 556-562, pp 1441-1445 doi:10.4028/www.scientific.net/amm.556-562.1441 2014 Trans Tech Publications, Switzerland The Design of an
More informationIJSRD - International Journal for Scientific Research & Development Vol. 4, Issue 06, 2016 ISSN (online):
IJSRD - International Journal for Scientific Research & Development Vol. 4, Issue 06, 2016 ISSN (online): 2321-0613 Aerodynamic Drag Reduction on Vehicle with and without Spoiler Rajath. H.R 1 Mrs. Shweta
More informationElectromagnetic Field Analysis for Permanent Magnet Retarder by Finite Element Method
017 Asia-Pacific Engineering and Technology Conference (APETC 017) ISBN: 978-1-60595-443-1 Electromagnetic Field Analysis for Permanent Magnet Retarder by Finite Element Method Chengye Liu, Xinhua Zhang
More informationCFD Investigation of Influence of Tube Bundle Cross-Section over Pressure Drop and Heat Transfer Rate
CFD Investigation of Influence of Tube Bundle Cross-Section over Pressure Drop and Heat Transfer Rate Sandeep M, U Sathishkumar Abstract In this paper, a study of different cross section bundle arrangements
More informationManufacturing Elements affecting the Performance & Durability Characteristics of Catalytic Converter
Manufacturing Elements affecting the Performance & Durability Characteristics of Catalytic Converter Mylaudy Dr.S.Rajadurai 1, R.Somasundaram 2, P.Madhusudhanan 2, Alrin M Victor 2, J.Y. Raja Shangaravel
More informationDESIGN OF AUTOMOBILE S BODY SHAPE AND STUDY ON EFFECT OF AERODYNAMIC AIDS USING CFD ANALYSIS
DESIGN OF AUTOMOBILE S BODY SHAPE AND STUDY ON EFFECT OF AERODYNAMIC AIDS USING CFD ANALYSIS Akshay S 1, Ashik Vincent 2, Athul Anand R 3, George Kurian 4, Dr. Shajan Kuriakose 5 1,2,3,4 B-Tech Degree
More informationA Study on Performance Enhancement of Heat Exchanger in Thermoelectric Generator using CFD
IJIRST International Journal for Innovative Research in Science & Technology Volume 2 Issue 10 March 2016 ISSN (online): 2349-6010 A Study on Performance Enhancement of Heat Exchanger in Thermoelectric
More informationThe Modeling and Simulation of DC Traction Power Supply Network for Urban Rail Transit Based on Simulink
Journal of Physics: Conference Series PAPER OPEN ACCESS The Modeling and Simulation of DC Traction Power Supply Network for Urban Rail Transit Based on Simulink To cite this article: Fang Mao et al 2018
More informationInvestigation for Flow of Cooling Air through the Ventilated Disc Brake Rotor using CFD
International Journal of Thermal Technologies E-ISSN 2277 4114 2015 INPRESSCO, All Rights Reserved Available at http://inpressco.com/category/ijtt/ Research Article Investigation for Flow of Cooling Air
More informationComparison of Swirl, Turbulence Generating Devices in Compression ignition Engine
Available online atwww.scholarsresearchlibrary.com Archives of Applied Science Research, 2016, 8 (7):31-40 (http://scholarsresearchlibrary.com/archive.html) ISSN 0975-508X CODEN (USA) AASRC9 Comparison
More informationDESIGN AND ANALYSIS OF UNDERTRAY DIFFUSER FOR A FORMULA STYLE RACECAR
DESIGN AND ANALYSIS OF UNDERTRAY DIFFUSER FOR A FORMULA STYLE RACECAR Ali Asgar S. Khokhar 1, Suhas S. Shirolkar 2 1 Graduate in Mechanical Engineering, KJ Somaiya College of Engineering, Mumbai, India.
More informationStudy on Flow Fields in Variable Area Nozzles for Radial Turbines
Vol. 4 No. 2 August 27 Study on Fields in Variable Area Nozzles for Radial Turbines TAMAKI Hideaki : Doctor of Engineering, P. E. Jp, Manager, Turbo Machinery Department, Product Development Center, Corporate
More informationAutomobile Engine Compartment Parameters Optimization Based on CFD Simulation Wei YANG1, Shao-Ning WU1, Wei WANG1, Yu YANG2, Li LU2,a,*
Advances in Engineering Research, volume 103 Proceedings of the 3rd International Conference on Material Engineering and Application (ICMEA 2016) Automobile Engine Compartment Parameters Optimization Based
More informationApplication of Bionics of Tiger Beetle to Aerodynamic Optimization of MIRA Fastback Model
2017 International Conference on Computer Science and Application Engineering (CSAE 2017) ISBN: 978-1-60595-505-6 Application of Bionics of Tiger Beetle to Aerodynamic Optimization of MIRA Fastback Model
More information2756. Numerical computation for the impact of pantograph angles on the near-field and far-field aerodynamic noises of pantographs
2756. Numerical computation for the impact of pantograph angles on the near-field and far-field aerodynamic noises of pantographs Jia Wei Tan 1, Bin Bai 2, Xiang Yu Xu 3, Xiao Lei Yang 4 1 Institute of
More informationFLOW CONTROL THROUGH VORTEX SHEDDING INTERACTION OF ONE CYLINDER DOWNSTREAM OF ANOTHER. Jonathan Payton 1, and *Sam M Dakka 2
International Journal of GEOMATE, May, 2017, Vol.12, Issue 33, pp. 53-59 Geotec., Const. Mat. &Env., ISSN:2186-2990, Japan, DOI: http://dx.doi.org/10.21660/2017.33.2565 FLOW CONTROL THROUGH VORTEX SHEDDING
More informationCFD analysis on the aerodynamics characteristics of Jakarta-Bandung high speed train
CFD analysis on the aerodynamics characteristics of Jakarta-Bandung high speed train Tony Utomo 1,*, Berkah Fajar 1, and Hendry Arpriyanto 2 1 Mechanical Engineering Department, Faculty of Engineering,
More informationThe Testing and Data Analyzing of Automobile Braking Performance. Peijiang Chen
International Conference on Computational Science and Engineering (ICCSE 2015) The Testing and Data Analyzing of Automobile Braking Performance Peijiang Chen School of Automobile, Linyi University, Shandong,
More informationNoise Reduction in a Reciprocating Compressor by Optimizing the Suction Muffler
Noise Reduction in a Reciprocating Compressor by Optimizing the Suction Muffler Katakama Nagarjuna ¹ K.Sreenivas² ¹ M.tech student, ²Professor, dept of mechanical engineering kits, markapur, A.P, INDIA
More informationMeasurement and Analysis of Underhood Ventilation Air Flow and Temperatures for an Off- Road Machine
Measurement and Analysis of Underhood Ventilation Air Flow and Temperatures for an Off- Road Machine Tanju Sofu and Fon-Chieh Chang, Argonne National Laboratory Ron Dupree and Srinivas Malipeddi, Caterpillar,
More informationAnalysis of Air Flow and Heat Transfer in Ventilated Disc Brake Rotor with Diamond Pillars
International Journal of Current Engineering and Technology E-ISSN 2277 4106, P-ISSN 2347 5161 2016 INPRESSCO, All Rights Reserved Available at http://inpressco.com/category/ijcet Research Article Analysis
More informationEffects of Dilution Flow Balance and Double-wall Liner on NOx Emission in Aircraft Gas Turbine Engine Combustors
Effects of Dilution Flow Balance and Double-wall Liner on NOx Emission in Aircraft Gas Turbine Engine Combustors 9 HIDEKI MORIAI *1 Environmental regulations on aircraft, including NOx emissions, have
More informationA Study on the Optimum Shape of Automobile Air Cleaner Diffuser
A Study on the Optimum Shape of Automobile Air Cleaner Diffuser HoseopSong 1, Byungmo Yang 2 and Haengmuk Cho 1,* 1 Division of Mechanical and Automotive Engineering, Kongju National University, Chungnam,
More informationEffect of Relative Wind on Notch Back Car with Add-On Parts
Effect of Relative Wind on Notch Back Car with Add-On Parts DEBOJYOTI MITRA * Associate Professor & Head Department of Mechanical Engineering Sir Padampat Singhania University Udaipur 313601, Rajasthan.
More informationWIND TUNNEL TEST WITH MOVING VEHICLE MODEL FOR AERODYNAMIC FORCES OF VEHICLE-BRIDGE SYSTEMS UNDER CROSS WIND
The Seventh Asia-Pacific Conference on Wind Engineering, November 8-1, 009, Taipei, Taiwan WIND TUNNEL TEST WITH MOVING VEHICLE MODEL FOR AERODYNAMIC FORCES OF VEHICLE-BRIDGE SYSTEMS UNDER CROSS WIND ABSTRACT
More informationStructure Parameters Optimization Analysis of Hydraulic Hammer System *
Modern Mechanical Engineering, 2012, 2, 137-142 http://dx.doi.org/10.4236/mme.2012.24018 Published Online November 2012 (http://www.scirp.org/journal/mme) Structure Parameters Optimization Analysis of
More informationScroll Compressor Oil Pump Analysis
IOP Conference Series: Materials Science and Engineering PAPER OPEN ACCESS Scroll Compressor Oil Pump Analysis To cite this article: S Branch 2015 IOP Conf. Ser.: Mater. Sci. Eng. 90 012033 View the article
More informationNumerical Study on the Flow Characteristics of a Solenoid Valve for Industrial Applications
Numerical Study on the Flow Characteristics of a Solenoid Valve for Industrial Applications TAEWOO KIM 1, SULMIN YANG 2, SANGMO KANG 3 1,2,4 Mechanical Engineering Dong-A University 840 Hadan 2 Dong, Saha-Gu,
More informationNumerical Simulation of the Aerodynamic Drag of a Dimpled Car
Numerical Simulation of the Aerodynamic Drag of a Dimpled Car By: Ross Neal Abstract: The drag coefficient of a dimpled half-car of various dimple radii and densities and a half-car without dimples was
More informationEffect of concave plug shape of a control valve on the fluid flow characteristics using computational fluid dynamics
Effect of concave plug shape of a control valve on the fluid flow characteristics using computational fluid dynamics Yasser Abdel Mohsen, Ashraf Sharara, Basiouny Elsouhily, Hassan Elgamal Mechanical Engineering
More informationMulti-body Dynamical Modeling and Co-simulation of Active front Steering Vehicle
The nd International Conference on Computer Application and System Modeling (01) Multi-body Dynamical Modeling and Co-simulation of Active front Steering Vehicle Feng Ying Zhang Qiao Dept. of Automotive
More informationStudy on Braking Energy Recovery of Four Wheel Drive Electric Vehicle Based on Driving Intention Recognition
Open Access Library Journal 2018, Volume 5, e4295 ISSN Online: 2333-9721 ISSN Print: 2333-9705 Study on Braking Energy Recovery of Four Wheel Drive Electric Vehicle Based on Driving Intention Recognition
More informationChapter 7: Thermal Study of Transmission Gearbox
Chapter 7: Thermal Study of Transmission Gearbox 7.1 Introduction The main objective of this chapter is to investigate the performance of automobile transmission gearbox under the influence of load, rotational
More informationParametric Study on Flow and Heat Transfer Performance of Multi-Flow Spiral-Wound Heat Exchanger
319 A publication of CHEMICAL ENGINEERING TRANSACTIONS VOL. 39, 2014 Guest Editors: Petar Sabev Varbanov, Jiří Jaromír Klemeš, Peng Yen Liew, Jun Yow Yong Copyright 2014, AIDIC Servizi S.r.l., ISBN 978-88-95608-30-3;
More informationCFD ANALYSIS OF FLUID FLOW AND HEAT TRANSFER IN A SINGLE TUBE-FIN ARRANGEMENT OF AN AUTOMOTIVE RADIATOR
Proceedings of the International Conference on Mechanical Engineering 2005 (ICME2005) 28-30 December 2005, Dhaka, Bangladesh ICME05- CFD ANALYSIS OF FLUID FLOW AND HEAT TRANSFER IN A SINGLE TUBE-FIN ARRANGEMENT
More informationComparing FEM Transfer Matrix Simulated Compressor Plenum Pressure Pulsations to Measured Pressure Pulsations and to CFD Results
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2012 Comparing FEM Transfer Matrix Simulated Compressor Plenum Pressure Pulsations to Measured
More informationTheoretical and Experimental Investigation of Compression Loads in Twin Screw Compressor
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2004 Theoretical and Experimental Investigation of Compression Loads in Twin Screw Compressor
More informationCFD Simulation of a Scroll Compressor Oil Pumping System
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2000 CFD Simulation of a Scroll Compressor Oil Pumping System J. de Bernardi Danfoss Maneurop
More informationCFD Analysis of Oil Discharge Rate in Rotary Compressor
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering CFD Analysis of Oil Discharge Rate in Rotary Compressor Liying Deng haitunsai@.com Shebing
More informationEngineering Success by Application of STAR-CCM+ for Modern Gas Turbine Design
STAR Japanese Conference 2013 December 3, Yokohama, Japan Engineering Success by Application of STAR-CCM+ for Modern Gas Turbine Design Norbert Moritz, Karsten Kusterer, René Braun, Anis Haj Ayed B&B-AGEMA
More informationABSTRACT I. INTRODUCTION III. GEOMETRIC MODELING II. LITERATURE REVIW
2017 IJSRSET Volume 3 Issue 5 Print ISSN: 2395-1990 Online ISSN : 2394-4099 Themed Section: Engineering and Technology Performance Analysis of Helical Coil Heat Exchanger Using Numerical Technique Abhishek
More informationMARINE FOUR-STROKE DIESEL ENGINE CRANKSHAFT MAIN BEARING OIL FILM LUBRICATION CHARACTERISTIC ANALYSIS
POLISH MARITIME RESEARCH Special Issue 2018 S2 (98) 2018 Vol. 25; pp. 30-34 10.2478/pomr-2018-0070 MARINE FOUR-STROKE DIESEL ENGINE CRANKSHAFT MAIN BEARING OIL FILM LUBRICATION CHARACTERISTIC ANALYSIS
More informationCavitation CFD using STAR-CCM+ of an Axial Flow Pump with Comparison to Experimental Data
Cavitation CFD using STAR-CCM+ of an Axial Flow Pump with Comparison to Experimental Data Edward M. Bennett, Ph.D. Vice President of Fluids Engineering March 17, 2014 The Project Mechanical Solutions,
More informationA Brake Pad Wear Control Algorithm for Electronic Brake System
Advanced Materials Research Online: 2013-05-14 ISSN: 1662-8985, Vols. 694-697, pp 2099-2105 doi:10.4028/www.scientific.net/amr.694-697.2099 2013 Trans Tech Publications, Switzerland A Brake Pad Wear Control
More informationBack pressure analysis of an engine muffler using cfd and experimental validation
Back pressure analysis of an engine muffler using cfd and experimental validation #1 Mr. S.S. Mane, #2 S.Y.Bhosale #1 Mechanical Engineering, PES s Modern College of engineering, Pune, INDIA #2 Mechanical
More informationNumerical Simulation of the Thermoelectric Model on Vehicle Turbocharged Diesel Engine Intercooler
Research Journal of Applied Sciences, Engineering and Technology 6(16): 3054-3059, 013 ISSN: 040-7459; e-issn: 040-7467 Maxwell Scientific Organization, 013 Submitted: January 1, 013 Accepted: January
More informationInfluence of Cylinder Bore Volume on Pressure Pulsations in a Hermetic Reciprocating Compressor
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2014 Influence of Cylinder Bore Volume on Pressure Pulsations in a Hermetic Reciprocating
More informationResearch on Pressure Loss for the Reverse-Flow Extended-Tube Muffler*
Research on Pressure Loss for the Reverse-Flow Extended-Tube Muffler* Jie Yao 1, Zhao-Xiang Deng 1,2, Pei-Ran Li 1, and Liang Yang 2 1 State Key Laboratory of Mechanical Transmission, Chongqing University,
More informationModeling and Simulation of Linear Two - DOF Vehicle Handling Stability
Modeling and Simulation of Linear Two - DOF Vehicle Handling Stability Pei-Cheng SHI a, Qi ZHAO and Shan-Shan PENG Anhui Polytechnic University, Anhui Engineering Technology Research Center of Automotive
More informationMethods for Reducing Aerodynamic Drag in Vehicles and thus Acquiring Fuel Economy
Journal of Advanced Engineering Research ISSN: 2393-8447 Volume 3, Issue 1, 2016, pp.26-32 Methods for Reducing Aerodynamic Drag in Vehicles and thus Acquiring Fuel Economy L. Anantha Raman, Rahul Hari
More information2292. Numerical computation of aerodynamic noises of the high speed train with considering pantographs
2292. Numerical computation of aerodynamic noises of the high speed train with considering pantographs Ya-hui Wang 1, Jian-ting Wang 2, Liu-qiang Fu 3 North China University of Water Resources and Electric
More informationClearance Loss Analysis in Linear Compressor with CFD Method
Clearance Loss Analysis in Linear Compressor with CFD Method Wenjie Zhou, Zhihua Gan, Xiaobin Zhang, Limin Qiu, Yinzhe Wu Cryogenics Laboratory, Zhejiang University Hangzhou, Zhejiang, China, 310027 ABSTRACT
More informationThe Performance Optimization of Rolling Piston Compressors Based on CFD Simulation
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2004 The Performance Optimization of Rolling Piston Compressors Based on CFD Simulation
More informationINVESTIGATION OF HEAT TRANSFER CHARACTERISTICS OF CIRCULAR AND DIAMOND PILLARED VANE DISC BRAKE ROTOR USING CFD
SDRP JOURNAL OF NANOTECHNOLOGY & MATERIAL SCIENCE. INVESTIGATION OF HEAT TRANSFER CHARACTERISTICS OF CIRCULAR AND DIAMOND PILLARED VANE DISC BRAKE ROTOR USING CFD Research AUTHOR: A.RAJESH JUNE 2017 1
More informationSimulation of Particle Trajectory of 1.8-in Hard Disk Drive ABTRACT INTRODUCTION NUMERICAL MODEL
8 Simulation of Particle Trajectory of 1.8-in Hard Disk Drive ««. 14 (1) : 2552 Simulation of Particle Trajectory of 1.8-in Hard Disk Drive Sikarin Jintranun 1 and Kiatfa Tangchaichi 2 ABTRACT A simulation
More informationCFD ANALYSIS OF PRESSURE DROP CHARACTERISTICS OF BUTTERFLY AND DUAL PLATE CHECK VALVE
CFD ANALYSIS OF PRESSURE DROP CHARACTERISTICS OF BUTTERFLY AND DUAL PLATE CHECK VALVE Adarsh K M 1, Dr. V Seshadri 2 and S. Mallikarjuna 3 1 M Tech Student Mechanical, MIT-Mysore 2 Professor (Emeritus),
More informationFlow Simulation of Diesel Engine for Prolate Combustion Chamber
IJIRST National Conference on Recent Advancements in Mechanical Engineering (RAME 17) March 2017 Flow Simulation of Diesel Engine for Prolate Combustion Chamber R.Krishnakumar 1 P.Duraimurugan 2 M.Magudeswaran
More information51. Heat transfer characteristic analysis of negative pressure type EGR valve based on CFD
51. Heat transfer characteristic analysis of negative pressure type EGR valve based on CFD Guannan Hao 1, Sen Zhang 2, Yiguang Yin 3 Binzhou University, Binzhou, China 1 Corresponding author E-mail: 1
More informationEffect of Air-Dam on Low End Passenger Cars
Effect of Air-Dam on Low End Passenger Cars Abhinav Damle 1, Amitkumar Magdum 1, Isha Tikekar 1 1 DepartmentofAutomotiveEngineering,SchoolofMechanicalEngineering,VITUniversity,Vellore, TamilNadu,India,632014
More informationPreliminary Design of a LSA Aircraft Using Wind Tunnel Tests
Preliminary Design of a LSA Aircraft Using Wind Tunnel Tests Norbert ANGI*,1, Angel HUMINIC 1 *Corresponding author 1 Aerodynamics Laboratory, Transilvania University of Brasov, 29 Bulevardul Eroilor,
More informationChapter 2 Dynamic Analysis of a Heavy Vehicle Using Lumped Parameter Model
Chapter 2 Dynamic Analysis of a Heavy Vehicle Using Lumped Parameter Model The interaction between a vehicle and the road is a very complicated dynamic process, which involves many fields such as vehicle
More informationParametric Modeling and Finite Element Analysis of the Brake Drum Based on ANSYS APDL
2017 3rd International Conference on Green Materials and Environmental Engineering (GMEE 2017) ISBN: 978-1-60595-500-1 Parametric Modeling and Finite Element Analysis of the Brake Drum Based on ANSYS APDL
More informationRedesign of exhaust protection cover for high air flow levelling valve
IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-issn: 2278-1684,p-ISSN: 2320-334X, Volume 11, Issue 2 Ver. II (Mar- Apr. 2014), PP 90-96 Redesign of exhaust protection cover for high air
More informationDesign and Test of Transonic Compressor Rotor with Tandem Cascade
Proceedings of the International Gas Turbine Congress 2003 Tokyo November 2-7, 2003 IGTC2003Tokyo TS-108 Design and Test of Transonic Compressor Rotor with Tandem Cascade Yusuke SAKAI, Akinori MATSUOKA,
More informationEffects of Traffic Emission Resolution on NOx Concentration Obtained by CFD-RANS Modelling Over a Real Urban Area in Madrid (Spain)
Effects of Traffic Emission Resolution on NOx Concentration Obtained by CFD-RANS Modelling Over a Real Urban Area in Madrid (Spain) Beatriz Sánchez 1, Christina Quaassdorff 2, Jose Luis Santiago 1, Rafael
More informationExperimental Study on Torsional Vibration of Transmission System Under Engine Excitation Xin YANG*, Tie-shan ZHANG and Nan-lin LEI
217 3rd International Conference on Applied Mechanics and Mechanical Automation (AMMA 217) ISBN: 978-1-6595-479- Experimental Study on Torsional Vibration of Transmission System Under Engine Excitation
More informationCollaborative vehicle steering and braking control system research Jiuchao Li, Yu Cui, Guohua Zang
4th International Conference on Mechatronics, Materials, Chemistry and Computer Engineering (ICMMCCE 2015) Collaborative vehicle steering and braking control system research Jiuchao Li, Yu Cui, Guohua
More informationShape Optimization of Rotor Blade for Pulp Pressure Screen Based on FLUENT
Research Journal of Applied Sciences, Engineering and Technology 6(18): 3428-3436, 2013 ISSN: 2040-7459; e-issn: 2040-7467 Maxwell Scientific Organization, 2013 Submitted: January 21, 2013 Accepted: March
More informationUnited Power Flow Algorithm for Transmission-Distribution joint system with Distributed Generations
rd International Conference on Mechatronics and Industrial Informatics (ICMII 20) United Power Flow Algorithm for Transmission-Distribution joint system with Distributed Generations Yirong Su, a, Xingyue
More informationCFD Flow Analysis and Optimization of Exhaust Muffler
CFD Flow Analysis and Optimization of Exhaust Muffler Saumil Mahesh Trivedi 1, Sangita Bansode 2, Pankaj Pawar 3 1 Mtech CAD-CAM & Robotics Student Somaiya college of engineering 2 Professor, Department
More informationComparison of Velocity Vector Components in a Di Diesel Engine: Analysis through Cfd Simulation
IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-issn: 2278-1684,p-ISSN: 2320-334X PP. 55-60 www.iosrjournals.org Comparison of Velocity Vector Components in a Di Diesel Engine: Analysis
More informationSTAR European Conference 2010 AERODYNAMICS DEVELOPMENTS ON A LE MANS PROTOTYPE ORECA 01 LMP1
STAR European Conference 2010 AERODYNAMICS DEVELOPMENTS ON A LE MANS PROTOTYPE ORECA 01 LMP1 PRESENTATION 1. ORECA Presentation 2. Why we use CFD? 2009 Aero Development 2010 Aero Development 3. Methodology
More information