CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Solar load in Icepak

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

LinkBack Thread Tools Display Modes
Old   September 18, 2012, 09:56
Default Solar load in Icepak
New Member
Join Date: Sep 2012
Posts: 1
Rep Power: 0
drejac is on a distinguished road
Sponsored Links
Hi all,

I was simulating an enclosure in Icepak with solar load and noticed some unlogical behaviour. Then I tested a very simple model (a rectangular plate under the sun) and noticed the following:
- no matter what values for direct and diffuse solar absorption of the surface I set the result (temperature of plate) is always the same
- there is a temperature increase even in case when I set absorption to 0 and sunshine fraction to 0, since it seems that diffusive irradiation is always assumed to be absorbed completely (even if diffuse irradiation absorption is set to 0)

It is also not clear to me how the sun's position is calculated, since only the northward direction is required as input. It seems that gravity direction also plays some role as an error is reported if northward and gravity direction are the same. (I didn't try what happens if gravity is not defined)

Does somebody know how exactly the solar load model works in Icepak and do the above results imply a bug or am I missing something?
drejac is offline   Reply With Quote
Sponsored Links


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
solar load in fluent parallael processing guetat FLUENT 1 July 26, 2012 19:40
Solar Load Effects in Fluent Boreas FLUENT 1 December 15, 2010 01:15
solar radiation load rahulrahul155 Main CFD Forum 6 November 20, 2009 00:43
Tutorial: Using Solar Load Model for Indoor Ventilation amscosta FLUENT 0 July 17, 2009 17:09
Using the discrete ordinates solar load model Gary Slavin FLUENT 0 January 23, 2009 08:17

Sponsored Links

All times are GMT -4. The time now is 02:18.