This is an alternative aspect ratio computation (as used in Ansys Fluent). In this case, it is computed as the ratio of the maximum value to the minimum value of any of the following distances: the normal distances between the cell centroid and face centroids computed as a dot product of the distance vector and the face normal, and the distances between the cell centroid and nodes. For a unit cube (see Figure 419: Calculating the Aspect Ratio for a Unit Cube), the maximum distance is 0.866, and the minimum distance is 0.5, so the aspect ratio is 1.732. This type of definition can be applied on any type of mesh, including polyhedral.
