Convergence for Conjugate Heat Transfer

osgumero · February 9, 2010, 16:01

Hello all,

I'm relatively inexperienced with CFD and am trying to run simulations of conjugate heat transfer. While iterating, I am having problems getting the solution to converge.

What are possible remedies to obtain a converged solution? I know that refining the grid/mesh is one option but are there other things I should be looking into? For instance what would be the be best solution method (best as in the most accurate) for analyzing temperature gradients within a solid? Is there anything else that I should look into as well as refining my grid?

Thanks all

Jeremy

newdate4 · February 10, 2010, 06:53

If there arent any large changes in temperature, assign your fluid using the Boussinesq model & define the thermal expansion co-effiecient for the fluid in the material card.

February 9, 2010, 16:01	Convergence for Conjugate Heat Transfer	#1
osgumero New Member Jeremy Join Date: Feb 2010 Posts: 1 Rep Power: 0	Hello all, I'm relatively inexperienced with CFD and am trying to run simulations of conjugate heat transfer. While iterating, I am having problems getting the solution to converge. What are possible remedies to obtain a converged solution? I know that refining the grid/mesh is one option but are there other things I should be looking into? For instance what would be the be best solution method (best as in the most accurate) for analyzing temperature gradients within a solid? Is there anything else that I should look into as well as refining my grid? Thanks all Jeremy

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Convective / Conductive Heat Transfer in Hypersonic flows	enigma	Main CFD Forum	2	November 1, 2009 23:53
increasing mesh quality is leading to poor convergence	tippo	CFX	2	May 5, 2009 11:55
How can I increase Heat Transfer at Domain Interf?	B.Simon	CFX	3	October 28, 2008 19:53
Convergence in a conjugate heat transfer problem	dp	Siemens	6	June 9, 2006 01:53
Convective Heat Transfer - Heat Exchanger	Mark	CFX	6	November 15, 2004 16:55

February 10, 2010, 06:53		#2
newdate4 New Member newdate4 Join Date: Feb 2010 Posts: 7 Rep Power: 16	If there arent any large changes in temperature, assign your fluid using the Boussinesq model & define the thermal expansion co-effiecient for the fluid in the material card.