Stability, Accuracy, and Improvement of Crowley Advection Schemes

A. G. Petschek New Mexico Instituto of Mining and Technology, Socorro 87801

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L. D. Libersky New Mexico Instituto of Mining and Technology, Socorro 87801

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Abstract

The Crowley conservative advection scheme is shown to give difficulties even for constant initial concentrations in complex flows and to have a spectral radius greater than 1 for at least one such flow. Modifications are proposed that eliminate these problems without destroying conservation.

Abstract

The Crowley conservative advection scheme is shown to give difficulties even for constant initial concentrations in complex flows and to have a spectral radius greater than 1 for at least one such flow. Modifications are proposed that eliminate these problems without destroying conservation.

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