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July 31, 2018, 14:07	https://studentcommunity.ansys.com/thread/problems-loading-udf-for-moving-mesh-in-flu	#1
nickgaoda New Member Nick Join Date: Jul 2018 Posts: 3 Rep Power: 7	I want to calculate the time dependent velocity gradient (G) based on the turbulent kinetic energy and dissipation rate, but I am not sure how to call values of turbulent kinetic energy and dissipation rate from prior time step. From the UDF manual, only the density, velocity, temperature and species mass fraction from previous time step can be called by the macro. Is there anyone knows how to solve it? Thank you.

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