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If flying a supersonic tube, how to get rid of the flow through the inner duct

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Old   October 19, 2023, 14:09
Default If flying a supersonic tube, how to get rid of the flow through the inner duct
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Kevin
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Hello,

I am simulating supersonic flow of some vehicle in the shape of a tube, similar to a straw shape. The normal shock inside the tube (inner duct) creates flow spillage, which spills out in the front of the tube (inlet) and causes a huge increase in drag. I want to get rid of the flow through the duct to get rid of that shock, which therefore gets rid of the increase in drag.

How should I go about this? New boundary conditions?
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