Heating a Solid with Solar Radiation

Allankey · July 2, 2012, 15:22

Is it possible to heat a simple solid body with solar radiation in Fluent?

It seems that whatever I try I get convection from the surface but no conduction. What is going on? Please help

flotus1 · July 3, 2012, 04:14

For radiation simulations in solids, the radiation term has to be switched on manually.

Go to "Cell Zone Conditions" -> "edit" -> check "participates in radiation"

That should do the trick.

Allankey · July 3, 2012, 07:15

Quote:

Originally Posted by eng_s_sadeghi

Yes, it is possible. Please send me dimension and other information for modeling it, if you want. Find my email from my website.

Thank you so much for your offer of advice. If you like I can send my case file. I am working with Version 13, does that still suit you?

Allankey · July 3, 2012, 07:17

Quote:

Originally Posted by flotus1

For radiation simulations in solids, the radiation term has to be switched on manually.

Go to "Cell Zone Conditions" -> "edit" -> check "participates in radiation"

That should do the trick.

I have tried this but still no luck

it seems to work with thermal radiation but when I use irradiation nothing happens

Ganapathy · July 19, 2012, 07:32

Hi,
I am facing the same problem. I have a box , 500mmX500mmx500mm. At the centre is a thin piece of metal 300mmx300mmx5mm. I am trying to heat the metal using heat flux at the top surface and radiation heat transfer. But in the transient simulation, the air starts getting heated up much before the metal.

July 2, 2012, 15:22	Heating a Solid with Solar Radiation	#1
Allankey New Member James Join Date: May 2012 Posts: 11 Rep Power: 14	Is it possible to heat a simple solid body with solar radiation in Fluent? It seems that whatever I try I get convection from the surface but no conduction. What is going on? Please help

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July 3, 2012, 04:14		#2
flotus1 Super Moderator Alex Join Date: Jun 2012 Location: Germany Posts: 3,427 Rep Power: 49	For radiation simulations in solids, the radiation term has to be switched on manually. Go to "Cell Zone Conditions" -> "edit" -> check "participates in radiation" That should do the trick.

July 19, 2012, 07:32		#5
Ganapathy New Member Ganapathy Iyer Join Date: Mar 2009 Location: Pune, Maharashtra, India Posts: 25 Rep Power: 17	Hi, I am facing the same problem. I have a box , 500mmX500mmx500mm. At the centre is a thin piece of metal 300mmx300mmx5mm. I am trying to heat the metal using heat flux at the top surface and radiation heat transfer. But in the transient simulation, the air starts getting heated up much before the metal.