Non-constant radiation source

monkaeydadde · February 7, 2017, 08:31

Hi! I am trying to perform CFD analysis of a solar receiver power by concentrated solar power. Usually the focal spot of the receiver has a gaussian behaviour for what concern spatial distribuition of the radiation. my question is:
is it possible to insert a non constant, still directional, radiation source?

Opaque · February 7, 2017, 10:13

Create a CEL expression as a function of the xyz coordinates over the surface of the collector.

monkaeydadde · February 7, 2017, 12:32

Quote:

Originally Posted by Opaque

Create a CEL expression as a function of the xyz coordinates over the surface of the collector.

Thank you opaque for the reply. I am afraid I am not such a pro-user to understand what you just said!

can you be more specific! thank you!

Opaque · February 7, 2017, 12:49

For example,

Radiation Flux = 100 [W m^-2] * ( x / 1 [m])

If you plot it, it would be a straight line from the origin to the end of the egde (assuming aligned with the x axis)

Please search for CEL in the documentation, and read the tutorials/examples.

February 7, 2017, 08:31	Non-constant radiation source	#1
monkaeydadde New Member Davide Join Date: Feb 2017 Posts: 6 Rep Power: 9	Hi! I am trying to perform CFD analysis of a solar receiver power by concentrated solar power. Usually the focal spot of the receiver has a gaussian behaviour for what concern spatial distribuition of the radiation. my question is: is it possible to insert a non constant, still directional, radiation source?

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February 7, 2017, 10:13		#2
Opaque Senior Member Join Date: Jun 2009 Posts: 1,880 Rep Power: 33	Create a CEL expression as a function of the xyz coordinates over the surface of the collector.

February 7, 2017, 12:49		#4
Opaque Senior Member Join Date: Jun 2009 Posts: 1,880 Rep Power: 33	For example, Radiation Flux = 100 [W m^-2] * ( x / 1 [m]) If you plot it, it would be a straight line from the origin to the end of the egde (assuming aligned with the x axis) Please search for CEL in the documentation, and read the tutorials/examples.