A New Method to Optimize the Wake Flow of a Vehicle: The Leading Edge Rotating Cylinder

Table 10

The maximum, minimum, and mean values of the bus aerodynamical coefficients.

		Position	Unoptimized	Optimized	Optimizing rate (%)
Cd	Maximum	0	0.465	0.432	−7.1
	Minimum	3.6	0.348	0.325	−6.6
	Mean value	—	0.410	0.386	−5.8
Cs	Maximum	−1	0.282	0.268	−5.0
	Minimum	−3	−0.086	−0.102	−18.6
	Mean value	—	0.041	0.027	−34.1
Cl	Maximum	−1	−0.221	−0.257	−16.3
	Minimum	1	−0.354	−0.395	−11.6
	Mean value	—	−0.279	−0.324	−16.1
	Maximum	1	0.056	0.097	+73.2
	Minimum	3	−0.042	−0.005	+88.1
	Mean value	—	0.001	0.042	+4100
Cm	Maximum	3	0.056	0.049	−12.5
	Minimum	−1	−0.179	—	—
		0	—	−0.298	—
	Mean value	—	−0.047	−0.027	−42.6