Menu

Discussion Forum

New Discussion
Filter

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Radiation - Discrete Ordinates

Posted Dec 25, 2018, 8:23 a.m. EST Heat Transfer Version 5.3a 2 Replies

Natan Padoin
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

In the simple model attached an incident irradiation of 10 W/m² is set at the internal walls, but when solving a value as high as ~50 W/m² is reached at this surface. Why?

Attachments:

2 Replies Last Post Dec 25, 2018, 2:42 p.m. EST
Edgar J. Kaiser Certified Consultant
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 6 years ago Dec 25, 2018, 2:17 p.m. EST
Updated: 6 years ago Dec 25, 2018, 2:18 p.m. EST

Hi Natan,

I see in your model that incident radiation is defined in terms of W/(m^2 * sr). So there may be a factor of approx. 2*pi in between, since the surface approx. looks at a half space?

Cheers Edgar

-------------------
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Hi Natan, I see in your model that incident radiation is defined in terms of W/(m^2 * sr). So there may be a factor of approx. 2*pi in between, since the surface approx. looks at a half space? Cheers Edgar
Natan Padoin
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 6 years ago Dec 25, 2018, 2:42 p.m. EST

Hi Edgar,

Thank you. That makes sense.

Regards,

Natan

Hi Edgar, Thank you. That makes sense. Regards, Natan

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content