Original title: Prediction of turbulent flow over the inclined step by means of various two-equation turbulence models
Authors: Janeček, Vladislav ; Příhoda, Jaromír
Document type: Papers
Conference/Event: International Conference Experimental Fluid Mechanics 2009, Liberec (CZ), 2009-11-25 / 2009-11-27
Year: 2009
Language: eng
Abstract: The work deals with the numerical simulation of turbulent flow over an inclined step in a channel of the rectangular cross-section according to measurement of Makiola (1992). The simulation was carried out by means of the commercial software ANSYS FLUENT with users defined functions. Various two-equation turbulence models based on the k-eps formulation were tested with the aim to estimate their ability to predict the extent of the separation region and energy losses due to inclined step with the angle 15 deg. Numerical results were compared with experimental data from LDA measurements. Besides, determined energy losses were compared with losses in a channel with a backward-facing step.
Keywords: flow over inclined step; flow separation; turbulence modelling
Project no.: CEZ:AV0Z20760514 (CEP), GA101/07/1508 (CEP), GA103/09/0977 (CEP)
Funding provider: GA ČR, GA ČR
Host item entry: International Conference Experimental Fluid Mechanics 2009 - Conference Proceedings, ISBN 978-80-7372-538-9

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/11104/0178366

Permalink: http://www.nusl.cz/ntk/nusl-40846


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Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers