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October 20, 2007, 06:58 |
two phase flow with surface tension
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#1 |
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I have a quesiton on how to define the difficulty for simulation of two phase flows with interface. If the flow is dominated by viscocity, it is simple If it is dominated by inertial, the interface shape changes a lot, it is not difficult the flow dominated by surface tension is the most difficult.
Then the problem is how to define the difficulty. Once there is a parameter named Ohnesorge number Oh= mu/sqrt(D rho sigma), but in there parameter, the diameter is beside the surface tension. As we know according to the Lapalace dp=sigma/r, small r means higher surface tension force. Does anyone has a better idea? |
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