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What's the boundary condition for 1D Shock Tube Problem?

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Old   August 26, 2012, 15:52
Default What's the boundary condition for 1D Shock Tube Problem?
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Hi All,

I am coding for 1d shock tube problem by using Roe solver. However, I wonder how to set the appropriate boundary condition for the problem?

Should I use a free-stream condition that the states at both ends keep as initial constant values?

Thanks.
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