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Shock viscosity in SUPG

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Old   September 1, 2016, 09:28
Default Shock viscosity in SUPG
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Hi all,

I am trying to make a shock tube, hence 1D Euler equations, which I solve using SUPG. I have troubles understanding how shock capturing terms are calculated. The SUPG formulation I use is correct, as the test case with expansion fans only is solved correct. I tried the \delta_{91} and Y Z \beta, but for both I'm not understanding how they work. I believe in the end it should be a 3x3 diagonal matrix.

Any help would be extremely appreciated.
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discontinuity, shock tube, supg

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