**3. Validation**

To validate the methodology used in the present study, we compare the obtained results for different values of the slip parameter (*β*1) with those of Wang [24], Noghrehabadi et al. [25], Sahoo and Do [26] and Abbas et al. [37], by assuming that *M* = 0 and *A* = 1000. When the curvature parameter *A* tends towards the infinity value, the curved stretching surface is assumed to be a flat stretching surface. Thus, by fixing *A* = 1000, the results are found to be in good agreement. The current results are shown in Table 2, which provides

a basis for comparison with Wang [24], Noghrehabadi et al. [25], Sahoo and Do [26], and Abbas et al. [37].


**Table 2.** Comparison of *Cf Re* <sup>1</sup> 2 *<sup>s</sup>* for various values of *β*1, when *M* = 0 and *A* = 1000.
