Renormalization Group Analysis of k-.EPSILON. Model and LES Model on Turbulence Problem

Autor:	Wako Takanashi
Rok vydání:	1991
Předmět:	Physics::Fluid Dynamics Physics Flow (mathematics) K-epsilon turbulence model Turbulence Mechanical Engineering Statistical physics Turbulent Prandtl number Algebraic number Renormalization group Condensed Matter Physics Constant (mathematics) Differential (mathematics)
Zdroj:	TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B. 57:2716-2718
ISSN:	1884-8346 0387-5016
DOI:	10.1299/kikaib.57.2716
Popis:	This paper presents the renormalization group analysis for the turbulence problem. This procedure does not require any experimentally adjustable parameters. The following numerical values for important constants of turbulent flows can be derived : for instance, the Kolmogorov constant for the inertial-range spectrum Ck=1.605 ; turbulent Prandtl number for high-Reynolds-number heat transfer ; Pt=0.7179 ; A differential k-e model is derived in the high-Reynolds-number regions of the flow where the algebraic relation ν=0.0846 k2/e. A differential LES model is also derived, as is the Smagorinsky constant Cs=0.00615.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2dd24e95ca4bf28d6e95cb12d9b24a0d https://doi.org/10.1299/kikaib.57.2716 Zobrazit plný text záznamu