Hydrodynamic effect of slip boundaries and exponentially decaying/growing time-dependent pressure gradient on Dean flow

Journal of the Egyptian Mathematical Society

Table 2 Validation of the present result obtained using the Riemann-sum approximation approach (RSA) with Jha and Gambo [32] for skin frictions

t	λ	Skin friction at \(R = 1\)		Skin friction at \(R = \lambda\)
t	λ	Present work RSA \(\left( {\alpha = \beta = 0.0} \right)\)	Jha and Gambo [32]\(\left( {{\text{Re}} = 0.0} \right)\)	Present work RSA \(\left( {\alpha = \beta = 0.0} \right)\)	Jha and Gambo [32]\(\left( {{\text{Re}} = 0.0} \right)\)
0.2	1.2	0.0968	0.0968	0.0857	0.0857
	1.4	0.1871	0.1871	0.1496	0.1496
	1.6	0.2706	0.2706	0.1982	0.1982
	1.8	0.3390	0.3390	0.2292	0.2292
0.4	1.2	0.0968	0.0968	0.0858	0.0858
	1.4	0.1871	0.1871	0.1496	0.1496
	1.6	0.2714	0.2714	0.1988	0.1988
	1.8	0.3499	0.3499	0.2373	0.2373
Steady state	1.2	0.0967	0.0967	0.0856	0.0856
	1.4	0.1870	0.1870	0.1495	0.1495
	1.6	0.2713	0.2713	0.1987	0.1987
	1.8	0.3502	0.3502	0.2376	0.2376