Simulating power sources

saisanthoshm88 · May 23, 2011, 23:29

I was dealing with a electronics cooling problem and I had power sources to be considered for simulation. The info. available being the output power and the service temperature range for the power sources from the specification manuals.

So in general while in such simulations is it fine to just go with the out put power ( in W) (or) will it also be required to take into account the info. about the service temperatures.
If so how do we account for the service temperatures in CFX

ghorrocks · May 24, 2011, 07:46

What are you trying to achieve with your models? CFD is merely a computer experiment, you just give it a set up and it tries to predict what the flow would look like given that set up. It does not give you the "answer", as many seem to believe.

What you do with the service temperatures is up to you. But for CFD you need to consider scenarios - "What would happen if the ambient temperature was 50C" or "What would happen if the cooling fan stopped"... these are scenarios where CFD can give you predictions of what would happen.

saisanthoshm88 · May 24, 2011, 11:46

Many thanks for the clarification Glenn.

May 23, 2011, 23:29	Simulating power sources	#1
saisanthoshm88 Senior Member --------- Join Date: Oct 2010 Posts: 303 Rep Power: 17	I was dealing with a electronics cooling problem and I had power sources to be considered for simulation. The info. available being the output power and the service temperature range for the power sources from the specification manuals. So in general while in such simulations is it fine to just go with the out put power ( in W) (or) will it also be required to take into account the info. about the service temperatures. If so how do we account for the service temperatures in CFX __________________ Best regards, Santhosh.

May 24, 2011, 11:46		#3
saisanthoshm88 Senior Member --------- Join Date: Oct 2010 Posts: 303 Rep Power: 17	Many thanks for the clarification Glenn. __________________ Best regards, Santhosh.

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May 24, 2011, 07:46		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,696 Rep Power: 143	What are you trying to achieve with your models? CFD is merely a computer experiment, you just give it a set up and it tries to predict what the flow would look like given that set up. It does not give you the "answer", as many seem to believe. What you do with the service temperatures is up to you. But for CFD you need to consider scenarios - "What would happen if the ambient temperature was 50C" or "What would happen if the cooling fan stopped"... these are scenarios where CFD can give you predictions of what would happen.