CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   May fluent can simulate heat and mass transfer? (http://www.cfd-online.com/Forums/fluent/28457-may-fluent-can-simulate-heat-mass-transfer.html)

yueroo April 21, 2001 11:14

May fluent can simulate heat and mass transfer?
 
Hi: I want simulate heat and mass transfer to drying grass but I don't want simulate fluid flow. That is I want to solve heat and mass equation . can FLUENT do it ? Thank you very much?

Harry Qiu April 23, 2001 04:01

Re: May fluent can simulate heat and mass transfer
 
Hi, Only one suggestion.You can try. set the velocity of the inlet is 0. Harry.

Xiao Hu April 24, 2001 10:04

Re: May fluent can simulate heat and mass transfer
 
I don't think you can solve the problem without simulating the flow. The reasons are as follows:

Temperature and mass fraction distribution will make density non-uniform, which in turn will cause flow due to gravity (natural convection). Diffusion process is much slower than convection. In other words, convection, even though only natural as opposed to forced, will make larger contribution to mass transfer than diffusion. Therefore, unless you can justify that natural convection in your case is small, you can not predict right mass transfer without solving the flow.

yueroo April 24, 2001 11:19

Re: May fluent can simulate heat and mass transfer
 
Hi Thanks for your suggestion. I want to get temperature distribution in grass. My grass is very tight, and only water will evaporization .(by heat) so I want to simulate heat condition, and mass diffusion. I think your suggestion I will try to do it . Can fluent simulate heat and mass and gas transfer in solid matrial ? I only see it can simulate fluid in mass and heat and momentem transfer. Thanks!!!!


All times are GMT -4. The time now is 12:43.