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1st order AUSM scheme oscillation on non-uniform grid

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Old   September 28, 2022, 12:10
Default 1st order AUSM scheme oscillation on non-uniform grid
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Indiana
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Hi,
For studying I coded the AUSM scheme for an 1-D Riemann problem. I found it shows oscillations on an non-uniform grid even with even 1st order spatial accuracy. Of course it gives non-oscillatory results when a uniform grid is adopted. Did I do something wrong? I already chose CFL number 0.5 for the smallest cell.
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