I am runing the symmetric and upwind TVD schemes at Mach < 3. In papers I've read(Yee, Harten), the Mach number can be hypersonic. However my code keeps blowing up at Ma > 5. The numerical method is the same for high and low Mach flows so I am unsure as to why it doesn't work. Is it to do with CFL?
Re: upwind scheme
find Quirk's article "Debate on great Riemann solver..." he wrote about "carbuncle phenomina" for M>6
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