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Terminating simulation when thermal equilibrium is reached.

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Old   September 4, 2020, 06:47
Default Terminating simulation when thermal equilibrium is reached.
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Dan Padrao
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Hi all,

My case includes two regions (air, block) and I am attempting to terminate the simulation once thermal equilibrium has been reached.

I am currently using the runTimeControl function object and have been successful in terminating the simulation when the minimum temperature (using fieldMinMax) remains within a given range and time period and when the initial residual for h is low enough and remains within a given range and time period as well.

However, I'd like to be able to stop my simulation using a value more physical than h and something more useful than the minimum temperature (depending on the case, the minimum temperature won't always coincide with equilibrium). Therefore I attempted using fieldAverage to obtain the average temperature of the system and a probe to find the temperature at a critical position within the block. However, I am not able to use either of these in the runTimeControl function object and it outputs an error saying that the field is unprocessed.

Does anyone have a solution for this? Or maybe a workaround? I'd really like to be able to use the temperature at a designated point to check whether thermal equilibrium has been reached.

Kind Regards,
Dan
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