Computational Study of Air Flow Interactions and Drag Reduction Techniques in Simplified Passenger Vehicle
| Author(s) | : | Mitali Mangesh Jadhav, Suhani Sanjay Patel, Dhruvin V Shah, Arpit N Patel |
| Institution | : | Aeronautical Engineering Department, Sardar Vallabhbhai Patel Institute of Technology, Vasad |
| Published In | : | Vol. 4, Issue 13 — January 2017 |
| Page No. | : | - |
| Domain | : | Engineering |
| Type | : | Research Paper |
| ISSN (Online) | : | 2348-4470 |
| ISSN (Print) | : | 2348-6406 |
Aerodynamic characteristics of passenger cars have been a fruitful area of research for several years, andcontinue to this day. The Ahmed body represents simplified geometry of generic passenger car that can be used to studythe flow characteristic of vehicles. The main objective of this paper is to understand the aerodynamic characteristics anddrag reduction techniques of an isolated passenger car. To study this problem, Ahmed car model with different rear slantangles (0°-40°), is simulated at the air velocity of 35 m/s using CFD. Also the effect of Reynolds Number, Groundclearance and rear end drag reduction techniques (varying fore body rounding and boat-tailing) on drag coefficient isidentified. The computational part includes numerical simulation of the flow around the Ahmed car body employing CFD(Computational Fluid Dynamics) techniques. The designing of model and CFD simulation is carried out in FLUENT(ANSYS 15.0). Major findings show that the rear part of the vehicle plays a major role in formation of wake. Significantdrag reduction was observed for 25° rear slant angle resulting from the reduced recirculation region behind the model.
Mitali Mangesh Jadhav, Suhani Sanjay Patel, Dhruvin V Shah, Arpit N Patel, “Computational Study of Air Flow Interactions and Drag Reduction Techniques in Simplified Passenger Vehicle”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 4, Issue 13, pp. -, January 2017.
