Numerical Simulation of the Flow Field around Generic Formula One

Abstract

The steady Reynolds-Averaged Navier-Stokes (RANS) method with the Realizable   k turbulence model was used to analyze the flow field around a race car (generic Formula One). This study was conducted using the ANSYS software package. The numerical simulations were conducted at a Reynolds number based on the race car model (14.9×106). The time-averaged velocity field, flow topology, velocity magnitude, static pressure magnitude and vortex regions of the flow fields are presented in this paper. The measurements were performed on the vertical and cross-sectional planes. The results are presented graphically, showing the main characteristics of the flow field around the whole race car, whereas most previous studies only mention the flow field around individual components of race cars. The Realizable k   turbulence model results showed consistency with the valuable validation data, which helps to elucidate the flow field around a model generic Formula one race car.

Nghiên cứu ảnh hưởng của thiết bị khuếch tán gió cản sau đến đặc tính khí động lực học ô tô

“…Trường hợp khích thước miền không gian tính toán quá lớn sẽ ảnh hưởng đến chi phí và thời gian tính toán. Từ các nghiên cứu [11,12,14], tác giả xây dựng miền không gian mô phỏng với các kích thước được mô tả trong hình 4.…”

Aerodynamic Forces Acting on a Race Car for Various Ground Clearances and Rake Angles

“…Computations were performed for steady viscous fluid flow using the Reynolds-averaged Navier Stokes (RANS) equations and the realizable k-ε turbulence model, as this model proved to be adequate for the analysis of the flow around cars, e.g. TienPhuc et al (2016). The governing equations of the used RANS model are given as, a) Continuity equation:…”

Numerical investigation for the influence of the car underbody on aerodynamic force and flow structure evolution in crosswind

“…Plenty of studies haven indicated that the realizable k-e turbulent model was widely used in automobile airflow calculation because of the advantages of accuracy. [21][22][23][24][25][26] In this model, a new model dissipation rate equation (based on the mean-square vorticity fluctuation at large turbulent Reynolds number) and a new realizable eddy viscosity formulation were constructed. Therefore, this model is more suitable for a variety of flows, including mixing layers, planar and round jets, rotating homogenous shear flows, boundary layers with adverse pressure gradients and flows with separation induced by the geometry of the domain.…”