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boundary onditions for the level set approach

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Old   August 11, 2003, 02:39
Default boundary onditions for the level set approach
Jia Shuo
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Now I use the level set method to simulate the incomressible two-phase flow. After solving the NS equation one step, i have to solve phi_t + u * gradient(phi) = 0. By the 2nd or 3rd order eno scheme, some ghost cells should be imposed. But since no boundary conditions for phi, how can i extrapolate the ghost cells? Thanks in advance.
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