[Cyp]

Dear all,

I stuck with the problem of assigning value to a field (let's call it alpha).

Let's say I have a very fine cartesian grid generated with blockMesh and that I want to assign value to a field alpha defined on this grid in order to match the binary image shown below. The cells in the black region will have the value 1 and the cells in the white region will have the value alpha=0.

I have a .stl file of this file and I am able to generate a grid with snappyHexMesh for either the black region. Then with mapField I can assign the value I want for alpha. However, the workflow is a little far-fetched.

Do you think of a more direct way to assign this value? Using snappyHexMesh and this *.stl file to assign values to my field alpha defined on a cartesian grid ?

Any ideas will be strongly appreciated.

Cheers,
Cyp