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Forum: OpenFOAM Running, Solving & CFD

November 13, 2013, 04:35

Replies: 10

Heat transfer, natural convection: Heat sink <-> Air

Views: 4,217

Posted By SvenH

Thanks mirx! Now I have only the heater and...

Thanks mirx!

Now I have only the heater and domain0 again. I still try to fix the error. It seems that there is something wrong with the thermophysicalProperties in domain0, right?. I started to...

Forum: OpenFOAM Running, Solving & CFD

November 13, 2013, 03:18

Replies: 10

Heat transfer, natural convection: Heat sink <-> Air

Views: 4,217

Posted By SvenH

For me it looks like the heatsink has a mesh...

For me it looks like the heatsink has a mesh :confused: And why are there now 11 domains? Do the domains all need the fluid properties?

Forum: OpenFOAM Running, Solving & CFD

November 12, 2013, 13:11

Replies: 10

Heat transfer, natural convection: Heat sink <-> Air

Views: 4,217

Posted By SvenH

I learned a bit about meshing with snappyHexMesh...

I learned a bit about meshing with snappyHexMesh today and my heat sink is part of the case now.

Can anybody help me with that error from my last post? And where do I define the heat source on my...

Forum: OpenFOAM Running, Solving & CFD

November 12, 2013, 07:51

Replies: 10

Heat transfer, natural convection: Heat sink <-> Air

Views: 4,217

Posted By SvenH

That was a nice advice! Like the other regions I...

That was a nice advice! Like the other regions I removed the topAir now and made domain0 fluid in constant/regionProperties. Where can I set the size of the box? I don't understand the code of...

Forum: OpenFOAM Running, Solving & CFD

November 11, 2013, 09:36

Replies: 10

Heat transfer, natural convection: Heat sink <-> Air

Views: 4,217

Posted By SvenH

Hi mirx, thank you for your reply. I started...

Hi mirx,

thank you for your reply. I started with snappyMultiRegionHeater already. I tried to run the case with only two regions: heater and topAir. I commented the other regions out in every...

Forum: OpenFOAM Running, Solving & CFD

November 11, 2013, 06:18

Replies: 10

Heat transfer, natural convection: Heat sink <-> Air

Views: 4,217

Posted By SvenH

Heat transfer, natural convection: Heat sink <-> Air

Hi everybody,

in the last weeks I tried to start with OpenFOAM and I would like to solve the following case:

The attached Heat sink gets a Heat Flux of 50 W on its lower surface. The natural...

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