Table 3 Influence of grid resolution on average Nusselt number for Ar = 0.4, φ = 0.05
From: Simulation of CuO-water nanofluid natural convection in a U-shaped enclosure with a T-shaped baffle
Ra | Number of nodes | Average Nusselt number | Percentage of error \(\left|\frac{\boldsymbol N{\boldsymbol u}_{\boldsymbol n\boldsymbol e\boldsymbol w}\boldsymbol-\boldsymbol N{\boldsymbol u}_{\boldsymbol p\boldsymbol r\boldsymbol e\boldsymbol v\boldsymbol i\boldsymbol o\boldsymbol u\boldsymbol s}}{\boldsymbol N{\boldsymbol u}_{\boldsymbol n\boldsymbol e\boldsymbol w}}\right|\boldsymbol\times\mathbf{100}\) |
|---|---|---|---|
104 | 100 × 100 | 2.3479 | - |
200 × 200 | 2.33776 | 0.04363 | |
300 × 300 | 2.3240 | 0.059208 | |
400 × 400 | 2.2958 | 0.012283 | |
105 | 100 × 100 | 7.96360 | - |
200 × 200 | 7.56556 | 0.12557 | |
300 × 300 | 7.7013 | 0.01762 | |
400 × 400 | 7.9542 | 0.03179 | |
106 | 100 × 100 | 15.9035 | - |
200 × 200 | 15.0586 | 0.056107 | |
300 × 300 | 14.8579 | 0.013507 | |
400 × 400 | 15.9324 | 0.067497 |