PSI - Issue 40

Natalya V. Burmasheva et al. / Procedia Structural Integrity 40 (2022) 82–89 Natalya V. Burmasheva, Evgeniy Yu. Prosviryakov / Structural Integrity Procedia 00 (2019) 000 – 000

87

6

(

) (

)

2 2 0 Z Z Za a k Z a + + + + = 2 4 6

is shown in Fig. 1.

Fig. 1. The set of velocity U zero points.

Figure 1 clearly illustrates the fact that, for any value of the normalized slip length a , the velocity U can have zero points inside the fluid layer under study. In this case, the position of this zero point is uniquely determined by the selected values of the coefficients k and a (Fig. 2).

Z

1.0

0.8

0.6

0.4

0.2

U

0.5

1.0

Fig. 2. The velocity U profile at k = − -5, a = 5.