Table 3 Virtual numerical wind tunnel flow field indicators.
From: High precision numerical simulation of passenger cars based on numerical wind tunnel
Flow field quality parameters | Measurement point location | Targets | Results |
|---|---|---|---|
Turbulence | Center point of the model area | < 0.2% | 0.051% |
Air deflection | Six measuring sections, 18 (Y-direction) × 11 (Z-direction) measuring points per section | < 0.2° | Pitch angle of 0.062°Yaw angle of 0.056° |
Pressure gradient | Center axis of the model area distance between measurement points: 0.5 m | ≤ 0.001 (1/m) | Accomplished target |
Boundary layer displacement thickness | Z-direction line at the center of the model area | < 2 mm | 0.155 mm |
