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how to define the free surface condition

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Old   November 3, 2004, 01:27
Default how to define the free surface condition
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hi,ereryone: my model is about water/gas mix steady flowing in a big vessel and with a free surface in the top vessel. I use eulerian multiphase model. But I don't know how to define the boundary condition of free surface because I can not use eulerian and vof models at the same time. Please illustrate your good ideas. Thanks for any suggestion!
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