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January 8, 2020, 13:30 |
noSlip and constantAlphaContactAngle
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#1 |
Senior Member
Josh McCraney
Join Date: Jun 2018
Posts: 220
Rep Power: 8 |
Hi!
I'm modifying the damBreak tutorial. In the script 0/alpha.water.orig I can specify one of the walls as type constantAlphaContactAngle, thereby specifying the contact angle at the wall. In the script 0/U I can specify the same wall as type noSlip. However, when I run the tutorial now, we see that the velocity does slip along the advancing front (fluid moves up and down, splashing along the wall). Can someone explain why noSlip seemingly does not enforce the no-slip BC everywhere along the wall? |
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November 11, 2021, 00:03 |
Similar issues with twophaseeulerfoam
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#2 |
Member
Nevada
Join Date: Apr 2014
Posts: 32
Rep Power: 12 |
Hi Josh,
Could you solve this issue? I am solving incline plane flow and seeing the solid phase sliding down noslip/fixedValue(0 0 0) wall. Since twophaseeulerfoam doesn't have alphacontactangle boundary implemented I am using zerogradient for alpha at wall. Do you think implementing alphacontactangle boundary would help in my case? |
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November 11, 2021, 00:27 |
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#3 | |
Senior Member
Josh McCraney
Join Date: Jun 2018
Posts: 220
Rep Power: 8 |
Quote:
rightWall{ type fixedValue; value uniform 0; } in the p_rgh try rightWall{ type fixedFluxPressure value 0; } and try noSlip in the U file. This should work; it worked for me via interFoam. |
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