How to define the magnitude of "shear" rate in CFD-Post?
 

Hi there,
I was just wondering how to define the magnitude of "shear" rate in CFD-Post. I found that "strain" rate is already available in CFD-Post, but I need to solely take "shear" rate as "shear" rate is just one part of "strain" rate. Is there anyone who knows what actual expression I have to enter to define the shear rate in CFD-Post? or is there anyway to directly use the shear rate if it's already available in CFD-Post?

Thank you very much for your help!