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Problems solving an air flow caused by a heated plate

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Hello community,

I have problems solving my COMSOL model. I want to simulate an air flow caused by a heated aluminum plate. To simulate this, I have chosen the combination of weakly compressible navier- stokes (chns) and general heat transfer (htgh).

There is a heated aluminum plate and a barrier in front so there must be an air flow as shown in picture_1.jpg. The problem is that the solution does not converge. The red arrows show the air current schematically.

In picture_2.jpg you can see my current solution. The temperature profile looks realistic, but the whole temperature scale is near 273 K. This is the start temperature of all parts in this model.

Is it useful to write down all my boundary conditions in this thread or is it allowed to upload my COMSOL model file here?

Is there anybody who can help me?


3 Replies Last Post 27.07.2010, 03:07 GMT-4

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Posted: 1 decade ago 22.07.2010, 05:49 GMT-4
Hi,
You can either give your model Boundary conditions or upload your model in the forum. I would like have a look into the problem.

AndyT
Hi, You can either give your model Boundary conditions or upload your model in the forum. I would like have a look into the problem. AndyT

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Posted: 1 decade ago 22.07.2010, 07:01 GMT-4
Hello,

thanks for your efforts.
Hello, thanks for your efforts.


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Posted: 1 decade ago 27.07.2010, 03:07 GMT-4
Hi,

is there someone who can give me a hint how to solve the problem? Do you need more information?
Hi, is there someone who can give me a hint how to solve the problem? Do you need more information?

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