Research Article
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 |
|
|