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Non reflective boundary condition

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Old   May 9, 2013, 19:26
Default Non reflective boundary condition
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I'm new to OpenFOAM and trying to model the partial coalescence cascade of a water droplet using interFoam with a barely modified damBreak scenario. I want the water waves created by the cascade to leave at both sides without being reflected. What boundary conditions do I need to apply?

At the moment I just use a sufficiently large width to solve the problem. This approach, however, increases the runtime.

A screenshot of the beginning of the simulation is attached.
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File Type: jpg coalescence.jpg (10.1 KB, 20 views)
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