ON THE TURBULENCE IN A VISCOUS HEAT-CONDUCTING GAS

Autor:	Olga Frolova, Pavel Safronov, Alexander Dementiev, Tatiana Bugaeva, Sergey Voronkov
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	Heat conducting Physics::Fluid Dynamics Materials science Turbulence turbulence viscous heat-conducting gas coherent vortex structures vector wave equation boundary layer round jet Mechanics
Zdroj:	ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference; Vol 3 (2021): Environment. Technology. Resources. Proceedings of the 13th International Scientific and Practical Conference. Volume 3; 382-386
ISSN:	1691-5402 2256-070X
Popis:	The problem of the emergence of turbulence is one of the unsolved problems of physics and technology of the 20th century. It is noted that in order to understand the emergence of turbulence in a viscous heat-conducting gas, it is necessary to take into account the compressibility of the medium. A definition of turbulence in a viscous heat-conducting gas is given, which is a cyclically repeating process of the emergence and decay of coherent vortex structures described by a vector wave equation. The decay of vortex structures is accompanied by an explosive, asymptotic increase in pressure pulsations, which triggers a new cycle of turbulence generation. The emergence and decay of coherent vortex structures in the boundary layer on a plate and in a round jet is considered.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33b4dc77cec8fe053f6c0721f4721b74 http://journals.rta.lv/index.php/ETR/article/view/6527 Zobrazit plný text záznamu