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noSlip and constantAlphaContactAngle

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Old   January 8, 2020, 13:30
Default noSlip and constantAlphaContactAngle
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Josh McCraney
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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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