I ran a flow simulation and im trying to get my values of shear rate - Ive attempted to do that by drawing a line and calculating the values from x-y plots...however, the number of points close to the wall is not sufficient to get an accurate value. So the other approach i took was using surface plots to look at shear stress and then calculate my shear rate from that - unfortunately after doing the surface plots I get the image but there are some maximum values that I cannot find anywhere in my image - how could I find where those maximum values correspond to within my figure?

I also though that this was due to abrupt changes in mesh size, so i cropped a surface plot of just a region that contains very fine grid...however I still get those huge numbers and the color cannot be found in my image - I also edit the scale and set to adjust to the max so it does say that those values occur somewhere but I just cant seem to find were they are...

thanks for your help really appreciate it