Draft: ENH: relative velocity usage for porosity in MRF regions
Related to #1652 - updates porosity calculation when used with MRF to use relative velocity
Test case from bug report: rotatingCylinders-test.tgz
Edited by Andrew Heather
Related to #1652 - updates porosity calculation when used with MRF to use relative velocity
Test case from bug report: rotatingCylinders-test.tgz