Analysis of Flow over Passenger Cars using Computational Fluid Dynamics
English

P Ramya, A Hemanth Kumar, Jaswanth Moturi, N Ramanaiah
2015 International Journal of Engineering Trends and Technoloy  
One of the ongoing automotive technological developments is in the area of reduction of aerodynamic drag, because this has direct impact on fuel reduction. The present work consists of mainly determining the flow regime over vehicles and further evaluating the drag force and coefficient of drag using CFD analysis. For this analysis, two modern passenger cars-SEDAN&SUV models were considered.The analysis was carried out for velocities ranging from 30kmph to 120kmph. The analysis was further
more » ... ded to study the effect of adding a spoiler on both the models. A 3-D model of passenger car was drawn by using a snapshot of the actual vehicle. The snapshot was further developed by using AUTOCAD and CATIA-V5 software's. Further a control volume over the vehicle is also developed using the same software and the total model was imported into ANSYS workbench for CFD analysis. The results obtained in the form of drag force and drag coefficient are compared. It has been observed that the sedan model had lower drag. It was further found from the study that the addition of a spoiler has a minimal effect on the drag induced.
doi:10.14445/22315381/ijett-v29p232 fatcat:qpuzf57nbfhorkwlcdbvxpuxwe