- Tytuł:
- Nonlinear Interaction of Modes in a Planar Flow of a Gas with Viscous and Thermal Attenuation
- Autorzy:
- Perelomova, Anna
- Powiązania:
- https://bibliotekanauki.pl/articles/177137.pdf
- Data publikacji:
- 2019
- Wydawca:
- Polska Akademia Nauk. Czasopisma i Monografie PAN
- Tematy:
-
nonlinear wave theory
nonlinear acoustics
coupling dynamic equations
Burgers equation
diffusion equation - Opis:
- The nonlinear interaction of wave and non-wave modes in a gas planar flow are considered. Attention is mainly paid to the case when one sound mode is dominant and excites the counter-propagating sound mode and the entropy mode. The modes are determined by links between perturbations of pressure, density, and fluid velocity. This definition follows from the linear conservation equations in the differentia form and thermodynamic equations of state. The leading order system of coupling equations for interacting modes is derived. It consists of diffusion inhomogeneous equations. The main aim of this study is to identify the principle features of the interaction and to establish individual contributions of attenuation (mechanical and thermal attenuation) in the solution to the system.
- Źródło:
-
Archives of Acoustics; 2019, 44, 3; 551-559
0137-5075 - Pojawia się w:
- Archives of Acoustics
- Dostawca treści:
- Biblioteka Nauki
Artykuł