Computational model was developed to investigate aerodynamic forces acting on a closed-wheel race car. A particular focus was on the effects of ground clearance and rake angle on aerodynamic drag and lift forces. Computations were performed for a steady viscous fluid flow using the realizable k-ε turbulence model and non-equilibrium wall functions. The computational results indicate a strong influence of ground clearance and rake angle on aerodynamic loading of a race car. The largest drag force coefficient was obtained for the largest ground clearance. The drag force coefficient for the squatting car is larger by 5% compared to the reference case, where the both front and rear ground clearances are 100 mm. For the nose-diving car, the drag force coefficient is equal to the reference case. Increasing the ground clearance caused a negligible increase in the lift force coefficient in comparison with the reference case. A decrease in the ground clearance yielded an increase in the lift force coefficient. The largest positive lift force coefficient was obtained for a squatting car, whereas the largest negative lift force coefficient was observed for a nose-diving car. While the favorable aerodynamic downforce acting on front wheels is larger for a nose-diving car, for rear wheels it is larger for a squatting car.
Džijan, I. , Pašić, A. , Buljac, A. and Kozmar, H. (2019). Aerodynamic Forces Acting on a Race Car for Various Ground Clearances and Rake Angles. Journal of Applied Fluid Mechanics, 12(2), 361-368. doi: 10.29252/jafm.12.02.28706
MLA
Džijan, I. , , Pašić, A. , , Buljac, A. , and Kozmar, H. . "Aerodynamic Forces Acting on a Race Car for Various Ground Clearances and Rake Angles", Journal of Applied Fluid Mechanics, 12, 2, 2019, 361-368. doi: 10.29252/jafm.12.02.28706
HARVARD
Džijan, I., Pašić, A., Buljac, A., Kozmar, H. (2019). 'Aerodynamic Forces Acting on a Race Car for Various Ground Clearances and Rake Angles', Journal of Applied Fluid Mechanics, 12(2), pp. 361-368. doi: 10.29252/jafm.12.02.28706
CHICAGO
I. Džijan , A. Pašić , A. Buljac and H. Kozmar, "Aerodynamic Forces Acting on a Race Car for Various Ground Clearances and Rake Angles," Journal of Applied Fluid Mechanics, 12 2 (2019): 361-368, doi: 10.29252/jafm.12.02.28706
VANCOUVER
Džijan, I., Pašić, A., Buljac, A., Kozmar, H. Aerodynamic Forces Acting on a Race Car for Various Ground Clearances and Rake Angles. Journal of Applied Fluid Mechanics, 2019; 12(2): 361-368. doi: 10.29252/jafm.12.02.28706