SPECTRUM MODIFICATION DUE TO THE USE OF FINITE DIFFERENCES

Y. Ogura Johns Hopkins University

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Abstract

The modification of the vorticity spectrum associated with the use of finite differences instead of derivatives is considered for an isotropic turbulence field. The results permit a rough estimate of the dependence of the magnitude of vorticity on the grid spacing.

Abstract

The modification of the vorticity spectrum associated with the use of finite differences instead of derivatives is considered for an isotropic turbulence field. The results permit a rough estimate of the dependence of the magnitude of vorticity on the grid spacing.

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