|
[Sponsors] |
October 10, 2012, 06:06 |
problem in glass radiation model (DO model)
|
#1 |
New Member
nancy
Join Date: Sep 2012
Posts: 1
Rep Power: 0 |
Hi, everyone
I'm working on a glass radiation model in a closed domain with FLUENT, in which the temperature of glass will reduce gradually. The wall of the closed domain is adiabatic and there are a group of "heaters" attached on it to reduce the temperature. A fan is posed in the closed domain. The initial temperature of the glasses is 833K and the temperature boundary of the "heaters" is 713K. In fluent, the steady model is utilized and I adopt k-e turbulent model, DO radiation modle and energy model with the default parameters. I use velocity inlet and out flow boundary to present the fan. Utilize bossineq model in air density. Use all-zone initial condition: pressure-0, velocity-0.001, temperature-833K. There are some problems in the result. As the interation grows, the temperature of the glass is reduced gradually and finally the center temperature is lower than edge. But due to the poor heat conduction of glass, I think the center temperature should be higher. I don't know why the result like this. Maybe some errors exit in the cas. Thank you for your attention! |
|
Tags |
do model, glass radiation, temperature problem |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Problem on EDC model for coal combustion | lei | FLUENT | 4 | September 3, 2015 10:39 |
convergency problem with Solid Pressure Model | commonyue | Main CFD Forum | 0 | March 30, 2010 06:18 |
Radiation problem for car model | aero | FLUENT | 1 | February 4, 2007 00:30 |
multiphase mixing Problem with MRF model in MixSim | Srinivas | FLUENT | 0 | October 17, 2005 07:35 |
RE: Radiation model | Ashutosh Joshi | FLUENT | 1 | January 30, 2001 11:50 |