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JOURNALS // Vestnik Tomskogo Gosudarstvennogo Universiteta. Matematika i Mekhanika // Archive

Vestn. Tomsk. Gos. Univ. Mat. Mekh., 2011 Number 2(14), Pages 79–84 (Mi vtgu193)

This article is cited in 1 paper

MECHANICS

Method for minimizing the circuit diffusion in the numerical model of aerodynamics

M. A. Bubenchikov

Tomsk State University

Abstract: Through linearization of the trajectory of a fluid particle on a fragment corresponding to a difference cell, and as a result of natural variables associated with the trajectory of particles, as well as the use of the differences against the flow, the convective terms were approximated with minimization of the circuit or artificial diffusion. The test calculations confirm this result. It is shown that the proposed computational technique is suitable for use in conjunction with the method of simple iteration.

Keywords: convection-diffusion problem, natural variables, differences against the flow, method of simple iteration, minimization of the circuit or artificial diffusion.

UDC: 519.63

Received: 29.03.2011



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