Problems using fvdom radiation model and convection heat transfer

jrsilvio_ver · January 7, 2015, 10:08

One test problem was implemented using fvdom radiation model on BuoyantBousinesqPimpleFoam with a domain between two parallel plates. The upper one is hot with T=1000K (fixed temperature) and the bottom one is insulated (zerogradient). Air flow at 300K and V=15 cm/s was imposed on the input between parallel plates.

It was expected that the temperature on the bottom plane was higher than 300K. But it was not verified! The model was attached. I don't understand what is happening... Someone can help me?

jrsilvio_ver · January 13, 2015, 13:14

Nothing????

pedrojrebelo · January 20, 2015, 09:00

Hi,

I didnt´t had time to check the results but I think one of the problems you have is in the definition of the BC conditions for p and p_rgh. Check the file I attached.

jrsilvio_ver · January 22, 2015, 14:01

Pedro, I appreciate your response.
But the problem is the heat exchange by radiation, not in the flow.
Anyway I will test the suggested changes.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Error finding variable "THERMX"	sunilpatil	CFX	8	April 26, 2013 08:00
Comparison of radiation and convection heat transfer	panos_metal	FLUENT	0	December 5, 2011 22:04
model forced convection heat transfer on a heat sink	farzad	FLUENT	0	September 9, 2010 15:48
heat transfer with s2s radiation model in fluent	D. L.	FLUENT	3	July 31, 2008 08:40
Natural convection - Inlet boundary condition	max91	CFX	1	July 29, 2008 21:28

January 13, 2015, 13:14		#2
jrsilvio_ver Member JuNNioR Join Date: Feb 2014 Location: Brazil Posts: 44 Rep Power: 12	Nothing????

January 22, 2015, 14:01		#4
jrsilvio_ver Member JuNNioR Join Date: Feb 2014 Location: Brazil Posts: 44 Rep Power: 12	Pedro, I appreciate your response. But the problem is the heat exchange by radiation, not in the flow. Anyway I will test the suggested changes.