Work

Ultrasonic waves in classical gases

Year: 2017

Type: article

Abstract: The velocity and absorption coefficient for the plane sound waves in a classical gas are obtained by solving the Boltzmann kinetic equation, which describes the reaction of the single-particle distribution function to a periodic external field. Within the linear response theory, the nonperturbative dispersion equation valid for all sound frequencies is derived and solved numerically. The results are in agreement with the approximate analytical solutions found for both the frequent- and rare-collision regimes. These results are also in qualitative agreement with the experimental data for ultrasonic waves in dilute gases.

Source: Physical review. E

DOI: 10.1103/physreve.96.062142

Authors: A. G. Magner, M. I. Gorenstein, U. V. Grygoriev

Institutions: Institute for Nuclear Research, Bogolyubov Institute for Theoretical Physics, Taras Shevchenko National University of Kyiv

Language: English

Topic: Gas Dynamics and Kinetic Theory

Subfield: Applied Mathematics

Field: Mathematics

Domain: Physical Sciences

Open Access status: green

Funder: National Academy of Sciences of Ukraine

Award: G6219788698