Estimation of the Shear Stress Parameter of a Power-Law Fluid

Table 2

Comparison between estimated values for and for .

	−0.25	0	0.5	0.75
(numerical)	0.3995	0.4326	0.3539	0.2534
(series)	0.3945	0.4278	0.3497	0.2504
Error	−0.005	−0.0048	−0.0042	−0.003
Improved ()	0.3985	0.4318	0.3537	0.2544
(series)	3.74	3.026	1.985	1.415
Relative error in	4.1%	4.8%	6.1%	6.7%
Improved (error )	3.615	2.901	1.86	1.29