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In reality, (Cd)skin friction has biggest contribution to drag but ignored because of the inviscid model that we specify. (Cd)pressure should be zero, but it is not zero because of inaccuracies and numerical dissipation. |
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Do note that the lift coefficient for inviscid model is higher than the experimental value. In reality, if we take into account the effect of viscosity, we will have (Cl)skin friction of negative value. The viscous effect will lower the overall lift coefficient. Since our inviscid model neglect the effect of viscosity, we have a slightly higher lift coefficient compared to the experimental data. |
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Grid Convergence
A finer mesh with four times the original mesh density was created. The lift coefficient was found to be 0.649.
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