[paddy.here]

Hello foamers, I am trying to use partial slip boundary condition in openFoam but i think its not working because the resluts i am getting with partial slip is same as slip. what i am trying to do is if the temp is below 1680k it should move with slip velocity prescribed in velocity momentum equation with the source term or otherwise it should be a no slip to walls. the format i am using is this

type partialSlip;
valueFraction uniform 0.0;
value uniform (0 0 0);
fractionExpression "(T>1680) ? 1 : 0";


any help is appreciated. Thank you in advance.