Table 4 \(C_{\textrm{d}}\) and \(C_{\textrm{l}}\) for a NACA 0012 airfoil at \(\alpha =10^{\circ }\) having BC-1, \(A=30\) and different numbers of cells, N. GR is the growth ratio
From: Some effects of domain size and boundary conditions on the accuracy of airfoil simulations
Grid | N | First grid height | GR | \(\varvec{\min }\ \varvec{y}^{\varvec{+}}\) | \(\varvec{\max }\ \varvec{y}^{\varvec{+}}\) | \(\varvec{C}_{\textbf{d}}\) | \(\varvec{C}_{\textbf{l}}\) |
|---|---|---|---|---|---|---|---|
Coarsest | 37,888 | \(2.16 \times 10^{-6} \ c\) | 1.75 | 0.0329 | 0.9170 | 0.01525 | 1.03427 |
Coarse | 151,552 | \(1.08 \times 10^{-6} \ c\) | 1.32 | 0.0175 | 0.4080 | 0.01350 | 1.06517 |
Intermediate | 606,208 | \(5.4 \times 10^{-7} \ c\) | 1.15 | 0.0056 | 0.2024 | 0.01298 | 1.07271 |
Fine | 2,424,832 | \(2.7 \times 10^{-7} \ c\) | 1.07 | 0.0004 | 0.1013 | 0.01294 | 1.07273 |