Surface integrals report: incident radiation

February 6, 2009, 04:01

hi All

I want to model radiation through a lamp, which is placed inside a cylinder parallel to the longitudinal axis of the cylinder. I have defined the Irradiance on the lamp surface for example 300(W/m²) in the Discrete Ordinates(DO) model. After running several iterations; when i have checked the incident radiation on the lamp surface(Report->SurfaceIntegrals->Areaweighted ave->Incidentradiation), its showng a different value (for ex. 400 W/m²). Can anyone pls explain me what does it mean by Incident radiation in FLUENT. And what is wrong in my case.

thanks in advance

avi · May 12, 2009, 06:29

did you look at surface incident radiation quantity instead of incident radiation?

Pipiola · August 11, 2009, 15:51

I have a very similar problem, what was the reason??

sasa mohamed · February 8, 2018, 09:53

hi guys, did you find a solution to this problem?

February 6, 2009, 04:01	Surface integrals report: incident radiation	#1
Novice Guest Posts: n/a	hi All I want to model radiation through a lamp, which is placed inside a cylinder parallel to the longitudinal axis of the cylinder. I have defined the Irradiance on the lamp surface for example 300(W/m²) in the Discrete Ordinates(DO) model. After running several iterations; when i have checked the incident radiation on the lamp surface(Report->SurfaceIntegrals->Areaweighted ave->Incidentradiation), its showng a different value (for ex. 400 W/m²). Can anyone pls explain me what does it mean by Incident radiation in FLUENT. And what is wrong in my case. thanks in advance

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May 12, 2009, 06:29		#2
avi New Member Join Date: May 2009 Posts: 3 Rep Power: 16	did you look at surface incident radiation quantity instead of incident radiation?

August 11, 2009, 15:51		#3
Pipiola New Member Join Date: Aug 2009 Posts: 2 Rep Power: 0	I have a very similar problem, what was the reason??

February 8, 2018, 09:53		#4
sasa mohamed New Member Mostafa Join Date: Sep 2014 Posts: 9 Rep Power: 11	hi guys, did you find a solution to this problem?