Table 1 Optimal value of convergence control parameters for different orders of approximations
Order of approximation | \(\boldsymbol{\hbar}_{\boldsymbol{f}}\) | \(\boldsymbol{\hbar}_{\boldsymbol{\theta}}\) | \(\boldsymbol{\varepsilon_{m}^{t}}\) |
|---|---|---|---|
2 | −1.50039 | −0.52479 | 7.16404 × 10−4 |
3 | −1.14981 | −0.42060 | 6.90592 × 10−4 |
4 | −1.19560 | −1.16693 | 5.15041 × 10−4 |
5 | −1.24825 | −0.30060 | 5.55759 × 10−4 |
6 | −1.31412 | −1.28875 | 5.01547 × 10−4 |
7 | −1.35632 | −1.31419 | 4.05433 × 10−4 |
8 | −1.38483 | −1.36406 | 2.18914 × 10−4 |