I am attempting to perform an optimization study where I want to minimize the average "near" surface velocity along a few faces. Unlike when generating a surface plot, where an offset option can be picked so "near" surface velocity can be visualized, there is no such method when setting up goals that would be used for optimization. Does anyone know a workaround to what appears to be a limitation? It may help to also suggest that I am using surface velocity as an "indicator" of erosion rate.