How numerical dissipation supress aliasing error? -- CFD Online Discussion Forums

March 10, 2009, 03:26	How numerical dissipation supress aliasing error?	#1
hades Guest Posts: n/a	I try to use upwind difference scheme to supress aliasing error.It is said that by modified number analysis, if the imaginary part of the modified number wave number of a numerical scheme is negative, then such a scheme is dissipative. But I don't understand how such a scheme can supress aliasing error. Anyone know? Thank you.

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