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Modification of an algebraic bypass-transition model for internal flows
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SYSNO ASEP 0349203 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Modification of an algebraic bypass-transition model for internal flows Author(s) Straka, P. (CZ)
Příhoda, Jaromír (UT-L) RID, ORCIDNumber of authors 2 Source Title Topical Problems of Fluid Mechanics 2010. - Praha : Ústav termomechaniky, AV ČR, v. v. i., 2010 / Příhoda J. ; Kozel K. - ISBN 978-80-87012-25-3 Pages s. 139-142 Number of pages 4 s. Action Topical Problems of Fluid Mechanics 2010 Event date 10.02.2010-11.02.2010 VEvent location Praha Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords internal flows ; bypass transition 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 The contribution deals with testing of an algebraic bypass-transition model for shear flows characteristic for turbomachinery. The transition model based on the algebraic equation for the intermittency coefficient is added to the averaged Navier-Stokes equations with the SST turbulence model. The transition onset and length are given by empirical relations. The modified model considers different intermittency coefficient in the transitional boundary layer and in the outer turbulent stream. The model was verified by means of test cases ERCOFTAC covering boundary-layer flow with various free-stream turbulence and pressure gradient. 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
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