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Scientific journal of the
theoretical and applied
The News of Altai State University
Print ISSN 1561-9443
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Content of 1(27) 2003
Mathematics and Computer Science
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T.A. Kozhukhovskaya, A.M. Sagalakov, D.I. Popov

Neutral relations for two-phase flow between coaxial cylinders

The linear stability with respect to three-dimensional perturbations of a stationary flow of a two-phase incompressible liquid with big particles is considered. The results of numerical calculations are presented. It is found, that spiral modes become the most dangerous for stability, when the radius of the interior cylinder has the certain values. The analysis of neutral relations is presented. It is found, that the resulting curve of the neutral stability for different azimuthal modes m has a specific "stepped" shape.

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