Effect of Concentric Annular Gap Flow on Wall Shear Stress of Stationary Cylinder Pipe Vehicle under Different Reynolds Numbers

Table 1

Coordinates of measuring points.

Number of measuring points	r (mm)	Φ (°)	Number of measuring points	r (mm)	Φ (°)	Number of measuring points	r(mm)	Φ (°)
1	40	0	5	40	120	9	40	240
2	40	30	6	40	150	10	40	270
3	40	60	7	40	180	11	40	300
4	40	90	8	40	210	12	40	330

Note. r represents the radius; Φ represents the angle on the cross section.