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Initiation of expansion wave

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Old   February 26, 2003, 03:58
Default Initiation of expansion wave
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I Clifford
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I am trying to simulate a shock tube problem on either CFX or Star-CD, to study the interactions of the expansion wave with various obstacles. I don't, however, know how to approach setting up such a problem on these packages. I do know that ideally I need an outlet where I can set flow conditions (Temperature, pressure, velocities, etc.) and an inlet that will initially have set conditions but must not reflect any waves passing it. I would appreciate any suggestions on how to achieve this.
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