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Accumulated variable

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Old   October 23, 2013, 10:06
Default Accumulated variable
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Hi all!

I am carrying out a parametric analysis/optimisation for transient case and I would like to set accumulated heat/heat flow as my output parameter. For example: I have a storage unit and air is passing by. I set geometry, velocity and temperature of air at the inlet as my input parameters and want to optimise them so that the stored heat will be max. It means that values for each time step should be somehow stored and summed and then this value should be output parameter.
Any suggestions how to do it, because I am really stuck right now? With UDF or should I write expression in PostCFD?
Hope I was clear
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accumulated variable, optimization, output parameters

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