Trouble with temperature derivatives -- CFD Online Discussion Forums

March 10, 2023, 01:06

Trouble with temperature derivatives

mary24

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mary

Join Date: Mar 2023

Posts: 3

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Hi, I am currently modelling a heat exchanger and would like to know the entropy generation rate. I have use solve/set/expert to keep temporary solver memory from being freed and used temperature derivatives in custom field function.

However, after the calculation completed, the calculated answer for entropy generation equals zero. I'm not sure where and what did I do wrong. I am quite new to these.

Please help with my problem. Thank you.

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