TY - JOUR AB - Purpose– The purpose of this paper is to gain a better understanding of the flow field structure around the race car in two cases: stationary wheel and rotating wheel. In addition, this paper also illustrates and clarifies the influence of wheel rotation on the aerodynamic characteristics around the race car. Design/methodology/approach– The author uses steady Reynolds-Averaged Navier-Stokes (RANS) equations with the Realizable k-ε model to study model open-wheel race car. Two cases are considered, a rotating wheel and stationary wheel. Findings– The results obtained from the study are presented graphically, pressure, velocity distribution, the flow field structure, lift coefficient (Cl) and drag coefficient (Cd) for two cases and the significant influence of rotating case on flow field structure around wheel and aerodynamic characteristics of race car. The decreases in Cd and Cl values in the rotating case for the race car are 16.83 and 13.25 per cent, respectively, when compared to the stationary case. Originality/value– Understanding the flow field structures and aerodynamic characteristics around the race car in two cases by the steady RANS equations with the Realizable k-ε turbulence model. VL - 25 IS - 8 SN - 0961-5539 DO - 10.1108/HFF-04-2014-0107 UR - https://doi.org/10.1108/HFF-04-2014-0107 AU - Dang Tien Phuc AU - Gu Zhengqi AU - Chen Zhen PY - 2015 Y1 - 2015/01/01 TI - Numerical simulation of flow field around the race car in case: Stationary wheel and rotating wheels T2 - International Journal of Numerical Methods for Heat & Fluid Flow PB - Emerald Group Publishing Limited SP - 1896 EP - 1911 Y2 - 2024/05/06 ER -