Numerical Investigation of Aerodynamic Noise Reduction of Nonpneumatic Tire Using Nonsmooth Riblet Surface

Table 1

Dimensional parameters of various parts of NPT.

Part name	Size/quantity
Shear outer diameter	593 mm
Hub diameter	410 mm
Tire width	195 mm
Shear band thickness	19.5 mm
Number of spokes	50 (25 couples)
Spoke thickness	4.2 mm
Spoke length	72 mm