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Old   November 17, 2009, 20:47
Default DNS Mass conservation
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Adrian Lekay
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i am modelling a liquid-vapor phase transition on a 2d periodic box using a CHO scheme on a staggared grid for space and explicit RK 3 for time marching. I have two questions

1) are PBC's and CHO schemes used without dramas, as i seem to be getting sawtooth like growths at the boundaries?

2)is a steadily declining total mass an indication of a specific problem with these techniques?

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cho, dns, instability, mass conservation, staggered

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