strain rate -- CFD Online Discussion Forums

December 22, 2016, 10:13	strain rate	#1
farhadkhari New Member farhad Join Date: May 2016 Posts: 7 Rep Power: 9	hi . i have a problem to define a UDF for my viscoplastic fluid. i attach my fluid condition . i dont know how to show the shear rate γ ̇. can i use the pre-defined function"strain_rate_mag" instead of that ? what about the "deformation tensor" D? if i define the apparent viscosity, does the fluent consider the deformation tensor itself?

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