CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Material properties needed for the DO-Model

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Display Modes
Old   June 20, 2012, 05:07
Default Material properties needed for the DO-Model
New Member
Join Date: Jan 2010
Location: Innsbruck, Austria
Posts: 4
Rep Power: 7
rambex001 is on a distinguished road
Hallo everybody,

I have a question concerning the absorption coefficient and the DO-Model in fluent. I tried to simulate a flat plate solar panel. For the semi-transparent glass cover I can calculate the absorption coefficient with the Lambert-Beer law, the next layer is air and here I set the absorption coefficient to 0.
My problem is now to determine the absorption coefficient of the absorber. I know the absorptivity (95%) and the reflectivity (5%) and the thickness from 1,5 mm, but how can I implement this correctly in the material properties where the absorption coefficient, scattering coefficient and the refractive index is needed?

I hope that there is someone out there who can help me.
Many thanks
rambex001 is offline   Reply With Quote


discrete ordinates, do-model, material properties, radiation

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Constant velocity of the material Sas CFX 15 July 13, 2010 08:56
Vaiable Material properties Pialisen FLUENT 2 November 29, 2006 14:12
how to change the material properties Marco CFX 7 September 22, 2005 18:53
Help needed to model gas-solids flow Juliana P FLUENT 3 September 21, 2005 09:42
material properties new-user CD-adapco 0 October 21, 2004 10:15

All times are GMT -4. The time now is 08:36.