Hi, I recently started using the laminar flow level set method to simulate the motion of water in a partially filled channel as air flows above it. The simulation runs well when the distance scales are large (50 m model width for example) running for a full 15 seconds time range or longer, but when I drop this to smaller scales (such as 5m) the simulation just blows up a few seconds in (or less) with water appearing from the outlet boundary for no reason. Anyone know what could be causing such an error?
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