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I am trying to model water wave propagation in 2D with CFD. What would be a suitable boundary condition to generate the waves on the left boundary? Currently I vary the fraction of water above the initial water level as a sine of time. I get some results, but not too good so far. I also tried a dynamic mesh following a tutorial but results seem very hard to control.

Ideally I need a condition which would allow me to generate waves with desired characteristics (period, speed etc.)

I am doing it in Fluent, so implementational advises are also appreciated as a bonus, but I guess the question isn't that much related to it. That's why I place my question here, not in the scicomp exchange.

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Did you consider asking this question here: cfd-online.com/Forums/fluent ? –  Bernhard Mar 6 '12 at 18:55

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FLEUNT has a open channel flow option for the VOF model, and a wave BC for open channel flow aswell. One can chose between several different formulations in the BC. The theoretical description can be found in the Theory Guide for FLUENT.

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Is this intended to answer the question? It doesn't seem like it does, in which case it shouldn't be posted as an answer. –  David Z Mar 8 '12 at 19:40
    
I think it does, it gives a reference too look up the BCs setup, fluent's theory guide is incredibly thorough. –  tiam Mar 10 '12 at 19:23

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