Acoustic field and the entropy mode induced by it in a waveguide filled with some non-equilibrium gases

• Authors: Anna Perelomova
• Languages of publication: EN

Abstracts

EN

The non-linear propagation of an acoustic beam in a rectangular waveguide is considered. The medium of sound propagation, is a gas where thermodynamically non-equilibrium processes take place: such as exothermic chemical reactions or excitation of vibrational degrees of a molecule’s freedom. The incident and reflected compounds of the acoustic field do not interact in the leading order in the case of periodic weakly nonlinear sound with zero mean value of velocity. The acoustic heating or cooling in a waveguide is discussed.

Keywords

EN

Non-equilibrium gas; irreversible chemical reaction; waveguide; nonlinear propagation of sound

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2013
• Volume: 11
• Issue: 3
• Pages: 380-386

Dates

published

1 - 3 - 2013

online

28 - 3 - 2013

Contributors

author

Anna Perelomova

• Faculty of Applied Physics and Mathematics, Gdansk University of Technology, ul. Narutowicza 11/12, 80-952, Gdansk, Poland

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Identifiers

DOI

10.2478/s11534-013-0186-4