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Spontaneous symmetry breaking in 1D shock front #1066

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inducer opened this issue Sep 20, 2024 · 1 comment
Open

Spontaneous symmetry breaking in 1D shock front #1066

inducer opened this issue Sep 20, 2024 · 1 comment

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@inducer
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inducer commented Sep 20, 2024 •
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@anderson2981 reports a 1D shock tube case meshed with structured tensor products that should obey $u(x,y)=U(x)$ for the life of the simulation, but it does not.

  • ideal gas
  • compressible
  • with limiting
  • $Q^5$

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@anderson2981
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anderson2981 commented Sep 23, 2024 •
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comparing pressure and temperature on 2 neighboring rows of cells. note the magnitude difference when moving to p5

p4 after 1000 steps
image

p5 after 1000 steps
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@inducer @anderson2981