M	Present result	Amel A. Aladrous et al. [46]	Oyelakin et al. [51]
M	$- C_{f} R e_{x}^{1 / 2}$	$- C_{f} R e_{x}^{1 / 2}$	$- C_{f} R e_{x}^{1 / 2}$
0	1.000008	1.00001	1.0000097
1	1.414213	1.41421	1.4142105
5	2.449490	2.44949	2.4494932
50	7.141428	7.14143	7.1414259
100	10.049875	10.0499	10.049894
500	22.383029	22.383	22.383134