How to view the gradient values of the spatial field distribution?

[maimunasabomuhammad3]

What is the registration order of field variables in DAFoam? I found that it does not seem to be the same as the storage order of mesh cells.

[friedenhe]

They should be in the same order. Are you running in parallel? If yes, the ordering could be tricky becasue the field ordering in DAFoam will be the same as the ordering in the processor*/polyMesh folder, instead of constant/polyMesh