User Coding in steady state simulation

nalamyogesh · February 1, 2019, 13:31

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, 19:43

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, 13:31	User Coding in steady state simulation	#1
nalamyogesh Member Yogesh Nalam Join Date: Sep 2012 Location: München, Germany Posts: 54 Rep Power: 14	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 !!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
The difference between steady state and transient	JuPa	CFX	36	December 9, 2019 23:50
Steady state Frozen Rotor Simulation with different RPM	AS_Aero	CFX	11	October 10, 2018 04:29
Transient & steady simulation	DIVYA P SOMAN	ANSYS	0	September 3, 2016 15:09
Under-relaxation for steady state simulation in CFX	Chander	CFX	7	May 1, 2014 13:44
Steady state simulation with transient partilcle tracking	mali28	FLUENT	2	February 7, 2013 15:25

February 1, 2019, 19:43		#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.