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Electronics box with internal air thermal model?
Posted May 25, 2010, 4:00 p.m. EDT 1 Reply
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I've also modeled a metal box containing stationary air and an internal heat source, but I just modeled conduction through the air. Perhaps in a fairly small box (less than a foot, or 30 cm) in size, with circuit boards and stuff inside, there's not enough room for convection to have much effect, and maybe the conduction model is good enough.
Does anyone know of an example where someone's modeled natural convection inside a closed region? Is the simple conduction approach used instead?
I'm thinking of building a simple test model for some measurements.
-Jeff
Hello Jeff Lastofka
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My name is Ziv Seemann and i too am trying to analyses a free convection flow in a closed space,
Im working on my model right now and when i finish something that can help you i will post it here.
Can you please share your model with me so i could see if it can help me learn something?
I have a model of free convection in an open space in 3D that I can't attached (6MB)
I can send it to your E-Mail if you want.
and for your question:
air has a Thermal coefficient of 0.03, for instense an insolating foam has 0.033,
not using a flow analyses will not give you the right results since air is a very good insulator you will something more insulating from insulating foam
Thanks!
Ziv Seemann