Table 4 The results of θ obtained from the present method and the FEM in \(\pmb{x_{{d}}=1.5\mbox{ mm}}\)
From: An approximate analytical solution of Richards equation with finite boundary
t (s) | Present method | FEM | Relative error (%) |
|---|---|---|---|
3.58233 | 0.27141 | 0.2771 | −2.05341 |
4.211 | 0.29188 | 0.2929 | −0.34824 |
4.97556 | 0.30889 | 0.3075 | 0.452033 |
5.2274 | 0.31535 | 0.314 | 0.429936 |
6.026 | 0.32109 | 0.3208 | 0.090399 |
7.036 | 0.32607 | 0.32878 | −0.82426 |