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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
*
qitaichu09@gmail.com
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Abstract

The discrete kinetic model is used to study the propagation of sound waves in system of hard-disk-like rotating gases. The anomalous (negative) attenuation or amplification which is possibly due to the binary collision of a dilute-enough rotating disk system (each with opposite-sign rotating direction or angular momenta but the total (net) angular momenta is zero) or microreversibility might arise from the implicit balance of the angular momentum during encounter. Our results might give useful idea to the instrumentation set-up of possible acceleration of cosmic rays passing through this kind of channel and direct or inverse cascades in two-dimensional rotating gases of astrophysical 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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