ANSYS

- Centroid skewness (Pointwise)=1- orthogonal quality (fluent) - Equiangle Skewness : 0 is good   and 1 bad, below 0.8 for a good grid; values below 0.9 are acceptable Equiangle skewness (pointwise) = ortho skew(Fluent) Important parameters: maximum included angles cell volume ratios

Fluent orthogonal quality minimum orthogonal quality>0.01 Aspect ratio: No specific value, avoid sudden and large changes in cell aspect ratios in areas where the flow field exhibit large changes or strong gradients Skewness <0.95   ANSYS Meshing For surface mesh , Min orthogonal quality 0.4-0.5 For volume mesh minimum orthogonality > 0.15 maximum skewness < 0.95 For orthogonal quality below 0.1, divergence is likely ICEM Pre-Mesh quality Determinant >0.3 Angle, (18, 90) Warpage < 45 degrees