|
[Sponsors] |
August 19, 2009, 11:40 |
About absorptivity and emissivity
|
#1 |
New Member
Jung-ryun Lee
Join Date: Aug 2009
Location: SOUTH KOREA
Posts: 3
Rep Power: 17 |
Dear CFD members.
Hi, I`m ryun. When I solve radiation problem using DO model, there are some trouble with my FLUENT solving. So Can you help me about this?? I want to set the absorptivity of the wall of 0.9 and simultaneously to set the emissivity of 0.1, making called "optical coating" condition. But as I know in my short knowledge, FLEUNT assumes that emissivity and absorptivity is same. moreover, I can`t find any blank to fill the absorptivity. So I'm glad you to let me know how to set the absorptivity of the wall condition differ from emissivity. PS : absoption coefficient isn`t considered in this matter. |
|
Tags |
absorptivity, discreate ordinate, emissivity, radiation |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Meaning of diffuse fraction,emissivity,absorption. | Ferdinando | FLUENT | 5 | June 20, 2022 05:14 |
how to define the emissivity | Eric Hasamann | FLUENT | 14 | August 26, 2016 06:40 |
Why no emissivity in mixture parameters? | Harry Qiu | FLUENT | 4 | March 28, 2001 07:56 |