On instability of steady-state three-dimensional flows of an ideal compressible fluid

On instability of steady-state three-dimensional flows of an ideal compressible fluid Научная публикация

Журнал

AIP Conference Proceedings
ISSN: 0094-243X

Вых. Данные

Год: 2018, Том: 2027, Номер статьи : 030025, Страниц : 12 DOI: 10.1063/1.5065119

Авторы

Gubarev Yuriy G. ^1,2

Организации

1	Laboratory for Fluid and Gas Vortex Motions, Lavrentyev Institute for Hydrodynamics, Novosibirsk, 630090, Russian Federation
2	Department for Differential Equations, Novosibirsk State University, Novosibirsk, 630090, Russian Federation

The problem on linear stability of stationary spatial flows of an inviscid compressible fluid entirely occupying a certain volume with quiescent solid impenetrable boundary in absence of external mass forces is studied. Applying the direct Lyapunov method, such flows are proved to be absolutely unstable under small three-dimensional (3D) perturbations. Constructive conditions for linear practical instability are obtained. The a priori exponential lower estimate for the growth of the considered perturbations in time is found.

Gubarev Y.G.
On instability of steady-state three-dimensional flows of an ideal compressible fluid
AIP Conference Proceedings. 2018. V.2027. 030025 :1-12. DOI: 10.1063/1.5065119 Scopus РИНЦ OpenAlex

Scopus:	2-s2.0-85056358222
РИНЦ:	37263104
OpenAlex:	W3025884488

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