Radiation heat transfer post processing(FloEFD)

sam63 · May 1, 2018, 02:58

Hi! How to display incident radiative flux from one source to another.For example from lamp to surface?

Boris_M · May 7, 2018, 04:50

Hi Aleksandr,

it is not possible to have a surface plot or surface parameter where you select only the radiation coming from a specific surface/source and hitting this surface.
If you used the monte carlo radiation model you can use the ray visualization to see how the rays reach a specific surface or how they bounce starting at one surface ending at another.

Boris

sam63 · May 7, 2018, 15:17

Quote:

Originally Posted by Boris_M

Hi Aleksandr,

it is not possible to have a surface plot or surface parameter where you select only the radiation coming from a specific surface/source and hitting this surface.
If you used the monte carlo radiation model you can use the ray visualization to see how the rays reach a specific surface or how they bounce starting at one surface ending at another.

Boris

Look at this presentation. Slide number 56. "lamp incident radiation flux [W/m2]"
http://docplayer.ru/49341639-Tehnolo...-division.html

Boris_M · May 8, 2018, 04:42

This model is very simple with just one lamp (or radiation source) and it is probably a user-defined visualization parameter where simply the net radiant flux and the leaving radiant flux was used to calculate the incident radiant flux and then the name was given with "lamp" in it.
There is no such parameter by default and this would only work in general if there is no other radiation in the model. If there are two radiation sources such as two lamps and you would like to know how much radiation is arriving at that surface from only one of the lamps, then this would not be possible in this way as the net and leaving radiation rate considers all radiation and not just from a specific object.

Regards,
Boris

May 1, 2018, 02:58	Radiation heat transfer post processing(FloEFD)	#1
sam63 New Member Aleksandr Join Date: May 2018 Posts: 2 Rep Power: 0	Hi! How to display incident radiative flux from one source to another.For example from lamp to surface? Last edited by sam63; May 2, 2018 at 03:10.

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May 7, 2018, 04:50		#2
Boris_M Disabled Join Date: Jul 2009 Posts: 616 Rep Power: 24	Hi Aleksandr, it is not possible to have a surface plot or surface parameter where you select only the radiation coming from a specific surface/source and hitting this surface. If you used the monte carlo radiation model you can use the ray visualization to see how the rays reach a specific surface or how they bounce starting at one surface ending at another. Boris

May 8, 2018, 04:42		#4
Boris_M Disabled Join Date: Jul 2009 Posts: 616 Rep Power: 24	This model is very simple with just one lamp (or radiation source) and it is probably a user-defined visualization parameter where simply the net radiant flux and the leaving radiant flux was used to calculate the incident radiant flux and then the name was given with "lamp" in it. There is no such parameter by default and this would only work in general if there is no other radiation in the model. If there are two radiation sources such as two lamps and you would like to know how much radiation is arriving at that surface from only one of the lamps, then this would not be possible in this way as the net and leaving radiation rate considers all radiation and not just from a specific object. Regards, Boris