User Coding in steady state simulation

nalamyogesh · February 1, 2019, 12:31

Hello,

If I want to write a user code that changes the heat flux on a boundary cell based on the temperature. And I am running a steady state CHT simulation.

1. Does the user code update the heat flux every iteration (steady state) ?
2. Is it better to just update the heat fluxes after the steady state simulation has converged ?

Thanks !!

me3840 · February 1, 2019, 18:43

I could be wrong but I believe you can just use a field function for this. There's a checkbox on field functions to return the cell value instead of the face value.

February 1, 2019, 12:31	User Coding in steady state simulation	#1
nalamyogesh Member Yogesh Nalam Join Date: Sep 2012 Location: München, Germany Posts: 54 Rep Power: 13	Hello, If I want to write a user code that changes the heat flux on a boundary cell based on the temperature. And I am running a steady state CHT simulation. 1. Does the user code update the heat flux every iteration (steady state) ? 2. Is it better to just update the heat fluxes after the steady state simulation has converged ? Thanks !!

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February 1, 2019, 18:43		#2
me3840 Senior Member Join Date: Nov 2010 Location: USA Posts: 1,232 Rep Power: 24	I could be wrong but I believe you can just use a field function for this. There's a checkbox on field functions to return the cell value instead of the face value.