Superresonant instability of a compressible hydrodynamic vortex-Reference-Cited by-同舟云学术

Superresonant instability of a compressible hydrodynamic vortex

Published:2016-08 Issue:09 Volume:25 Page:1641019
ISSN:0218-2718
Container-title:International Journal of Modern Physics D
language:en
Short-container-title:Int. J. Mod. Phys. D

Author:

Oliveira Leandro A.¹²,Cardoso Vitor³⁴,Crispino Luís C. B.¹

Affiliation:

1. Faculdade de Física, Universidade Federal do Pará, Belém, Pará 66075-110, Brazil

2. Department of Mathematics, University of York, Heslington, York, YO10 5DD, UK

3. CENTRA, Departamento de Física, Instituto Superior Técnico, Universidade Técnica de Lisboa–UTL, Av. Rovisco Pais 1, Lisboa 1049, Portugal

4. Perimeter Institute for Theoretical Physics, Waterloo, Ontario, Canada, N2J 2W9,

Abstract

We show that a purely circulating and compressible system, in an adiabatic regime of acoustic propagation, presents superresonant instabilities. To show the existence these instabilities, we compute the quasinormal mode frequencies of this system numerically using two different frequency domain methods.

Publisher

World Scientific Pub Co Pte Lt

Subject

Space and Planetary Science,Astronomy and Astrophysics,Mathematical Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0218271816410194

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