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Which boundaryField entry for pressure baffle? |
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August 12, 2023, 10:28 |
Which boundaryField entry for pressure baffle?
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New Member
Wilhelm Furian
Join Date: Apr 2023
Location: Berlin
Posts: 16
Rep Power: 3 |
Hello together!
I have adapted a case by Tobias Holzmann (https://holzmann-cfd.com/community/t...h-safety-valve) to work with my scenario of a dam breach in the mountains (Screenshot here: https://ibb.co/nPGyvMw) I've adapted his dictionaries into my case and the mesh generation works fine. I use snappyHexMesh, topoSet, createBaffle, and createPatch and define my dam as a baffle using activePressureForceBaffleVelocity in 0/U. This way, the dam should work like a pressure valve and should open after a certain water pressure is reached (the minThresholdValue below is just a placeholder). My boundaryField entry in U looks like this: Code:
blockedDamBaffle { type activePressureForceBaffleVelocity; cyclicPatch dam_master; openingTime 0.5; maxOpenFractionDelta 0.01; openFraction 0; minThresholdValue 1500; forceBased false; opening 1; value uniform (0 0 0); } I've followed Tobias so far as to insert the following into all the files (cyclic {type cyclic;}), but at least for alpha.water and p_rgh it demands a separate entry for my blockedDamBaffle. Since I'm only following the tutorial, I'm not sure how to write boundaryField entries for the other files in 0, as Tobias does not have them or doesn't have an entry. Do you have any tips, are there any other tutorials I can look this up? Thanks a lot! |
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Tags |
baffles, boundary condition, p_rgh |
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