[Oilfish]

hello everyone,
I am stuck at a problem. I am solving for solidification problem and want to calculate gradient corresponding to liquid fraction contour of value 0.7. Though am able to calculate contours for whole of my 2-dimentional geometry i am unable to get how to find out cells where value of liquid fraction is in range 0.65 to 0.75 and then use NV(C_T_G(c,t)) macro to find out gradient value at that location.

please can someone tell me how can i get the location of cells where the liquid fraction value is 0.65 to 0.75 . I am stuck at this since 1 week.

thanking you in anticipation.