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-   -   Mesh boundaries for waves (http://www.cfd-online.com/Forums/flow-3d/27302-mesh-boundaries-waves.html)

aginor December 4, 2008 18:31

Mesh boundaries for waves
 
i am using the v9.3 flow 3d. i am using the wave boundary from the one site and the outflow from the other. the water volume is always be less. the water is going out of the outflow and doesnt come in from the wave boundary. so the water height after some wave periods is zero. whats the Wrong??

michael barkhudarov December 5, 2008 01:29

Re: Mesh boundaries for waves
 
Aginor, do you see any waves at all?

aginor December 5, 2008 04:50

Re: Mesh boundaries for waves
 
yes! the waves are correct!

michael barkhudarov December 6, 2008 01:32

Re: Mesh boundaries for waves
 
Hmmm. What if you try a pressure with the fixed free surface height, instead of the outflow BC? How many wave periods are you simulating?

aginor December 6, 2008 18:47

Re: Mesh boundaries for waves
 
i try this also. but when the height from the wave as less than the initial i had a huge inflow!! i solve the problem by enable the allow reverse flow fanction!

michael barkhudarov December 7, 2008 01:34

Re: Mesh boundaries for waves
 
Good idea, Aginor. That's exactly what this function is for.


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