Accesing Unit Wall Normals
 

I'd like to calculate the following with CEL

uwn,i * VMG,i

uwn,i is the unit vector normal to the closest wall

VMG,i is the gradient of the vorticity magnitude

I can calculate the latter by including an Additional Variable for vort mag and taken the gradients

I do not see how to get the other

Any advice would be helpful

FYI
I have done this in Fluent before by activating the RSM model during case setup and patching C_STORAGE_R_NV(c,t,SV_WALL_NORMAL)[i] into 3 udms

I am amenable to doing the same type of process in CFX if necessary