|May 12, 2015, 05:58||
Natural convection in the enclosure model
Join Date: Mar 2013
Posts: 103Rep Power: 0
Hi every one!,
I do simulating natural convection of the air within the enclosure model. I considered "Boussinesq approximation" for the density term of the air and the results seems to be OK. but when I do change to "Ideal gas" I receiving "disconvecgence error of Temperature". transient analysis is employed. temperature difference between minimum and maximum imposed to the model is about 18C.
What is the reason of getting such an error?
In fact, I am validating the results of experimental work and I have two similar cases in which one with melting/solidification model and one without melting/solidification model.
In the case without melting/solidification model,the results are converged in the "ideal gas" mode for the density of the Air. but in the case with melting/solidification model, the results are converged when "Boussinesq approximation" is deployed.
|Thread||Thread Starter||Forum||Replies||Last Post|
|help with natural convection||cloudnqh||FLUENT||0||February 18, 2010 18:54|
|How model natural convection in water?||Fiska||FLUENT||4||January 28, 2010 04:23|
|Natural convection - Inlet boundary condition||max91||CFX||1||July 29, 2008 20:28|
|How to model natural convection||Ken Adams||FLUENT||4||January 23, 2007 16:14|
|natural convection in a sealed enclosure||James||Main CFD Forum||4||April 2, 2001 15:48|