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Temperature from previous time step in specific heat UDF

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Old   October 31, 2013, 11:59
Default Temperature from previous time step in specific heat UDF
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I am using the DEFINE_SPECIFIC_HEAT macro for a Cp relationship based on temperature.

I would like to access the temperature from the previous time step.

Iv tried C_T_M1(c,t) but it does not work.

The purpose is to determine whether the dT is positive or negative, heating or cooling, from which I call different Cp relationships.

Any help appreciated.
Thank you.
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