CFD Analysis of Rear Diffuser in a Sedan Vehicle to Reduce Drag Force |
Author(s): |
| Harish Kulkarni , POOJYA DODDAPPA APPA COLLEGE OF ENGINEERING, KALBURGI; Omprakash. D. Hebbal, POOJYA DODDAPPA APPA COLLEGE OF ENGINEERING, KALBURGI |
Keywords: |
| Rear Diffuser, CFD, Drag Co-Efficient, Sedan Model |
Abstract |
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The main purpose of this study is to explain the aerodynamic drag reduction mechanism of a passenger car moving at high speed through an actively translating rear diffuser device. In this work nine cases have been defined by varying the length and angle of the diffuser. The angles are varied from 2o to 5o and the length is varied from 50% length to 75% length of the vehicle. Computational Fluid Dynamics (CFD) analysis is performed under moving ground and rotating wheel conditions using ANSYS FLUENT 14.5. The drag co-efficient (CD) value obtained for the primary Sedan model is 0.3562. The minimum drag co-efficient value is obtained for primary Sedan model with the diffuser angle of 5o and 75% length is 0.2792 which is acceptable. |
Other Details |
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Paper ID: IJSRDV3I60170 Published in: Volume : 3, Issue : 6 Publication Date: 01/09/2015 Page(s): 219-224 |
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