Help with convective heat flow

June 21, 2004, 01:34

Problem: A non uniformly heated sphere is placed in the center of a spherical cavity (~10 times the diameter of the heated sphere) with fixed wall temperature and the intervening space is filled with low to moderate pressure gas (1 to 300 Torr). The system is in a gravitational potential. The gas settles into a convective flow that looks something like a toroidal pattern.

Question: Is the code ANSWER or ANSWER express (from ACRi - I think) a good code for this? Is there something better that can be run in a few days? I'm not a CFD expert; my background is in physics. I'd like to model this quickly. Thanks -- John

June 21, 2004, 16:51

One question is:

Does ANSWER allow you to include the radiative transfer?

June 21, 2004, 01:34	Help with convective heat flow	#1
John Moody Guest Posts: n/a	Problem: A non uniformly heated sphere is placed in the center of a spherical cavity (~10 times the diameter of the heated sphere) with fixed wall temperature and the intervening space is filled with low to moderate pressure gas (1 to 300 Torr). The system is in a gravitational potential. The gas settles into a convective flow that looks something like a toroidal pattern. Question: Is the code ANSWER or ANSWER express (from ACRi - I think) a good code for this? Is there something better that can be run in a few days? I'm not a CFD expert; my background is in physics. I'd like to model this quickly. Thanks -- John

June 21, 2004, 16:51	Re: Help with convective heat flow	#2
Jim_Park Guest Posts: n/a	One question is: Does ANSWER allow you to include the radiative transfer?

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
UDF for transient pressure inlet, mass flow check at nozzle exit and volumetric heat	kokoory	FLUENT	0	August 17, 2011 02:07
Concentric tube heat exchanger (Air-Water)	Young	CFX	5	October 6, 2008 23:17
UDF convective heat transfer correlations	sarah	FLUENT	0	March 29, 2007 09:52
Average Convective Coefficient (air) flow pipes	chetansardesai	Main CFD Forum	3	July 28, 2001 17:09
time averaged heat transfer in oscillating flow	Matthieu Ubas	Main CFD Forum	2	November 5, 1999 14:20