how to define a UDF for the incident radiation in DO radiation model

jeniuswx · July 12, 2012, 11:22

in the DO model for the radiation heat transfer modeling, under the radiation tab of the wall boundary condition definition, the semi-transparent media was selected, i want to use a UDF as a radiation source to add the incident radiation into the domain. the question: is it can be done in the fluent? and how and where to add this UDF into fluent? thank you !

flotus1 · July 12, 2012, 15:06

I did the exact same thing a few days ago.
You can find te answer to your thread here:
http://www.cfd-online.com/Forums/sta...aser-beam.html

In this example the BoCo is a heat flux, but you can use the same UDF for the radiation.

castor · May 10, 2022, 09:11

I know it's an old thread but I haven't found the answer yet. What is the macro for radiation ?

July 12, 2012, 11:22	how to define a UDF for the incident radiation in DO radiation model	#1
jeniuswx New Member tjut-wx Join Date: May 2009 Posts: 14 Rep Power: 17	in the DO model for the radiation heat transfer modeling, under the radiation tab of the wall boundary condition definition, the semi-transparent media was selected, i want to use a UDF as a radiation source to add the incident radiation into the domain. the question: is it can be done in the fluent? and how and where to add this UDF into fluent? thank you !

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July 12, 2012, 15:06		#2
flotus1 Super Moderator Alex Join Date: Jun 2012 Location: Germany Posts: 3,427 Rep Power: 49	I did the exact same thing a few days ago. You can find te answer to your thread here: http://www.cfd-online.com/Forums/sta...aser-beam.html In this example the BoCo is a heat flux, but you can use the same UDF for the radiation.

May 10, 2022, 09:11		#3
castor New Member Konstantinos Karamanos Join Date: Sep 2018 Posts: 1 Rep Power: 0	I know it's an old thread but I haven't found the answer yet. What is the macro for radiation ?