I am trying to calculate the Peclet number for mass transfer but I’m having trouble finding/calculating the variables. I am running a laminar 2D axisymmetric model with non-reacting species diffusion. Does anyone know how I can calculate in CFD-Post the characteristic length for the grid/mesh/cell? The Schmidt number? And/or the Peclet number? Is there a way to extract the characteristic length used to calculate the cell Reynolds number?
Any help on the matter would be greatly appreciated, thank you!