Diffusivity model in dynamicMeshDict of movingCone
 

Hello Foamers,

I am new to OpenFOAM. I tried to implement a moving boundary problem based on the examples using pimpleDyMFoam. For movingCone case, in the dynamicMeshDict the diffusivity model is chosen to be directional (1 200 0). Can anyone help to explain what does (1 200 0) means or point to some reference? Any help is high appreciated!

Jerry