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Dispersion relations of plane waves in system of hard-disk-like rotating gases

Published online by Cambridge University Press:  30 November 2010

Chu Zotin Kwang-Hua
Chu Zotin Kwang-Hua*
Affiliation:
Wu C-S Institute, 2/F, No. 24, First Section, Lane 260, Muzha Road, Taipei, Taiwan, 116, P.R. China
*
[email protected]
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Abstract

The discrete kinetic model is used to study the propagation ofsound waves in system of hard-disk-like rotating gases. Theanomalous (negative) attenuation or amplification which ispossibly due to the binary collision of a dilute-enough rotatingdisk system (each with opposite-sign rotating direction or angularmomenta but the total (net) angular momenta is zero) ormicroreversibility might arise from the implicit balance of theangular momentum during encounter. Our results might give usefulidea to the instrumentation set-up of possible acceleration ofcosmic rays passing through this kind of channel and direct orinverse cascades in two-dimensional rotating gases ofastrophysical problems.

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 52 , Issue 3 , December 2010 , 31304
Copyright
© EDP Sciences, 2010

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