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Can I use fvOptions to couple a solid region and a fluid region? |
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July 24, 2014, 14:36 |
Can I use fvOptions to couple a solid region and a fluid region?
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#1 |
New Member
CZ
Join Date: Jun 2013
Posts: 9
Rep Power: 13 |
Can I use fvOptions to couple a solid region and a fluid region?
The solid region represents a porous medium. The reason I want to do the coupling is because I need to solve both the thermal energy transport in the fluid and the heat conduction in the porous medium. I intend to use the chtMultiRegionSimpleFoam solver. (1) Is fvOptions allowed to be used to couple two regions that have different governing equations? (2) I modified the settings based on the heat exchanger case in the tutorial. Because I want a heat conduction equation to be solved for my porous region (vs. another flow region in the original tutorial case), I modified the fvSchems file to one that's supposed to solve a Laplacian equation only (see the following). Is this correct? FoamFile(3) Why does it keep asking for a pressure initial condition for the porous media (solid) region? If it only solves a heat conduction equation, why is pressure field needed? chao@ChaoCFDLinux:~/OpenFOAM/chao-2.3.0/run/oneChannePorousMediaHT$ chtMultiRegionSimpleFoam(4) It appears the fvOptions has to be defined respectively for both regions, the fluid and the porous region (solid). Does it matter which one is the master region? (5) Anyone has solved similar problems? And other suggestions to solve the problem? Thank you so much! |
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March 7, 2018, 08:46 |
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#2 |
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Adri
Join Date: Sep 2017
Posts: 24
Rep Power: 9 |
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November 21, 2020, 18:13 |
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#3 |
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Utkan Erdem
Join Date: Sep 2020
Posts: 19
Rep Power: 6 |
I'm curious about the exact same problem, how to couple the porous region to air in this case? Anyone?
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July 1, 2021, 14:22 |
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#4 |
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sw choi
Join Date: Aug 2020
Location: MD in USA
Posts: 20
Rep Power: 6 |
The key thing is porous media should be defined as fluid since it calculates the momentum(Pressure) sink. Thus, porous media can't be defined in solid region method even though code does not show any error or warning message (When you try to see the heat transfer and velocity in solid porous region, no effect is found). Please refer to chtMultiRegionSimple foam tutorial case; heat exchanger. I've make a lot of effort to add the porous features for 2DSolidQuenching tutorial case.
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January 14, 2022, 08:55 |
Metal foam as porous media in openfoam
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#5 |
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shubham mishra
Join Date: Dec 2019
Posts: 2
Rep Power: 0 |
Did any body solve above problem. How to use metal foam as a porous media?
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