Temperature conture plot
Hi! I'm a new user of OpenFoam and have a research project that force me to use it.
My project is to make a temperature contour plot from 1 CPU, based on temperature data measured in all 6 sides (front, left, right, back, upside, and bottom.). so, the purpose is to determine the air flow inside the CPU and where's the "hottest" spot on it. and I want to ask: 1). what solver is the best fit on my project? 2). how to add temperature function on that solver? any help will be greatly appreciated. thank you! |
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In such a case buoyantSimpleFoam or buoyantPisoFoam are OK. The first gives you a steady solution, the second shows you the evolution in time. If you need a "coupled" solver, take a look at chtMultiRegionalFoam or conjugateHeatFoam (only OpenFOAM-dev). Best, |
2 Attachment(s)
okay, i try to use buoyantPisoFoam here..
and before i'm starting my project, i try to be familiar with this solver first..:D in attachments there are blockMeshDict and screenshot i've taken. in this case, i try to make block with 2 heat sources inside (named "sensor" in the blockMeshDict) and I set in 310. there's also 1 wall called casekiri, which being set in 298. the air ("patchs") is 300. i simulate it for time interval 20 and got this screenshot (using slice mode). i think i made some mistakes so the picture is not as i expected, because the heat (higher temperature) seems only in the small cubes and didn't spread to the air.. what should I do if I want to get the heat spreading to all directions (after 20 times, i hope the temperature of air get higher..) Thanks-- |
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How does the air circulate inside? Only natural convection or is it forced? Best, |
I tried to change the 310 to 400 and (extremely) 2000, but nothing changed.
there's only natural convection.. |
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You might need much longer times. If you look at the tutorial, the final time is t = 1000s. Best, |
Hi, Berto.
hmm.. i think the problem still happened. Okay, for several times i'll postpone this project first.. and if you have time, please check my new thread (link : http://www.cfd-online.com/Forums/ope...-2-blocks.html).. There's similar problem with this one, so if you can help me with that problem, I'm very sure this problem can be solved easily too.. Thanks. |
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