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2013 | OriginalPaper | Buchkapitel

Instability of Low Density Supersonic Waves of a Viscous Isentropic Gas Flow Through a Nozzle

verfasst von : Weishi Liu, Myunghyun Oh

Erschienen in: Infinite Dimensional Dynamical Systems

Verlag: Springer New York

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Abstract

In this work, we examine the stability of stationary non-transonic waves for viscous isentropic compressible flows through a nozzle with varying cross-section areas. The main result in this paper is, for small viscous strength, stationary supersonic waves with sufficiently low density are spectrally unstable; more precisely, we will establish the existence of positive eigenvalues for the linearization along such waves. The result is achieved via a center manifold reduction of the eigenvalue problem. The reduced eigenvalue problem is then studied in the framework of the Sturm–Liouville Theory.

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Metadaten
Titel
Instability of Low Density Supersonic Waves of a Viscous Isentropic Gas Flow Through a Nozzle
verfasst von
Weishi Liu
Myunghyun Oh
Copyright-Jahr
2013
Verlag
Springer New York
DOI
https://doi.org/10.1007/978-1-4614-4523-4_6