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how to give as pressure jump for shock tube

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Old   July 11, 2013, 09:44
Default how to give as pressure jump for shock tube
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I have to give the pressure boundary conditions for a 2D shock tube problem using fluent. It may require use of the user defined functions I guess. Also the pressure BC should be given as a Pressure-Jump at a particular point. Can anybody tell me how should I give the boundary conditions.
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