On Sat, Apr 7, 2012 at 2:54 PM, Yun Tao <[email protected]> wrote: > > > I'm not sure what you mean. Are you saying that the value of the >> coefficient doesn't change the speed of the wave? >> >> > Sorry about the ambiguity. I meant that, even with VanLeerConvectionTerm, > a original Gaussian function is not preserved over time when given only a > convection term and no diffusion term. >
No scheme will perfectly preserve these features, but higher order schemes + limiters will do a good enough job for most applications. Cheers. -- Daniel Wheeler
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