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Application of the algebraic bypass-transition model for internal and external flows

SYSNO ASEP	0351057
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	Application of the algebraic bypass-transition model for internal and external flows
Author(s)	Straka, P. (CZ) Příhoda, Jaromír (UT-L)_{RID, ORCID}
Number of authors	2
Source Title	International Conference Experimental Fluid Mechanics 2010, Conference Proceedings Volume 2, 1. - Liberec : Technical University of Liberec, 2010 / Vít T. ; Dančová P. - ISBN 978-80-7372-670-6
Pages	s. 636-641
Number of pages	6 s.
Publication form	CD-ROM - CD-ROM
Action	Experimental Fluid Mechanics 2010
Event date	24.11.2010-26.11.2010
VEvent location	Liberec
Country	CZ - Czech Republic
Event type	WRD
Language	eng - English
Country	CZ - Czech Republic
Keywords	bypass transition modelling ; internal and external flows ; k-omega turbulence model
Subject RIV	BK - Fluid Dynamics
R&D Projects	GAP101/10/1329 GA ČR - Czech Science Foundation (CSF)
	IAA200760614 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z20760514 - UT-L (2005-2011)
Annotation	A modified algebraic model of bypass transition was implemented into the in-house numerical code for the simulation of 2D compressible turbulent flow using the RANS equations and the k-omega turbulence model. The intemittent character of flow in the transition region is described by the algebraic relation for the intermittency coefficient and by empirical relations for the onset and the length of the transition region. The modified algebraic model considers different intermittency coefficient in the boundary layer and in the outer turbulent stream. The proposed model was verified by means of test cases ERCOFTAC covering boundary-layer flow with various free-stream turbulence and pressure gradient. Further, the model was applied for the simulation of the transitional flow through a turbine blade cascade and around the NACA 0012 aerofoil.
Workplace	Institute of Thermomechanics
Contact	Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823
Year of Publishing	2011

Number of the records: 1