Original title: TOWARDS PRESSURE GRADIENT SENSITIVE TRANSITIONAL k-kL-omega MODEL: THE NATURAL TRANSITION FOR LOW RE AIRFOILS
Authors: Fürst, J. ; Islam, M. ; Příhoda, Jaromír ; Wood, D.
Document type: Papers
Conference/Event: Topical Problems of Fluid Mechanics 2015, Praha (CZ), 2015-02-11 / 2015-02-13
Year: 2015
Language: eng
Abstract: The work deals with the development of a pressure gradient sensitive variant of a three-equation RANS model for turbulent and transitional flows. The model is based on the laminar kinetic energy approach by Walters and Cokljat. The revisited model was successfully validated for zero or mild pressure gradient flows with the so-called bypass transition. In the case of natural transition in adverse pressure gradient flows the model usually tends to predict the transition too late, see. The aim of present work is to improve the model for the case of flows with very low free-stream turbulence levels with adverse pressure gradient. As a first step we focus the attention to the onset of linear instability.
Keywords: laminar kinetic energy; laminar-turbulent transition; turbulence
Project no.: GAP101/12/1271 (CEP)
Funding provider: GA ČR
Host item entry: Topical Problems of Fluid Mechanics 2015 , ISBN 978-80-87012-55-0, ISSN 2336-5781

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0246361

Permalink: http://www.nusl.cz/ntk/nusl-187387


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Research > Institutes ASCR > Institute of Thermomechanics
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