Table 7 Calculation results of aerodynamic coefficients under different working conditions.

From: High precision numerical simulation of passenger cars based on numerical wind tunnel

 

CD difference

CD accuracy

CL difference

CL accuracy

Rectangular open-field k-ε

0.0126

95.72%

0.0524

71.78%

Rectangular open-field k-ω

0.0134

95.45%

0.0648

65.11%

Rectangular open-field DES

 − 0.0031

98.95%

0.1292

30.43%

Numerical wind tunnel k-ε

0.0073

97.52%

0.0362

80.51%

Numerical wind tunnel k-ω

0.0029

99.02%

0.0332

82.12%

Numerical wind tunnel DES

0.0024

99.19%

0.0817

69.57%