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Abstract
Dynamics of a weakly nonlinear and weakly dispersive flow of a gas where molecular vibrational relaxation takes place is studied. Variations in the vibrational energy in the field of intense sound is considered. These variations are caused by a nonlinear transfer of the acoustic energy into energy of vibrational degrees of freedom in a relaxing gas. The final dynamic equation which describes this is instantaneous, it includes a quadratic nonlinear acoustic source reflecting the nonlinear character of interaction of high-frequency acoustic and non-acoustic motions in a gas. All types of sound, periodic or aperiodic, may serve as an acoustic source. Some conclusions about temporal behavior of the vibrational mode caused by periodic and aperiodic sounds are made.
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- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.2478/v10168-012-0012-9
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
Archives of Acoustics
no. 37,
pages 89 - 96,
ISSN: 0137-5075 - Language:
- English
- Publication year:
- 2012
- Bibliographic description:
- Perelomova A.: Nonlinear Influence of Sound on the Vibrational Energy of Molecules in a Relaxing Gas// Archives of Acoustics. -Vol. 37, iss. iss. 1 (2012), s.89-96
- DOI:
- Digital Object Identifier (open in new tab) 10.2478/v10168-012-0012-9
- Verified by:
- Gdańsk University of Technology
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