Original title: CFD Calculations in Turbomachinery and their Validation
Authors: Váchová, J. ; Louda, P. ; Příhoda, Jaromír ; Luxa, Martin ; Šimurda, David
Document type: Papers
Conference/Event: Turbostroje 2015, Praha (CZ), 2015-09-22 / 2015-09-24
Year: 2015
Language: eng
Abstract: Numerical data obtained by 2D compressible flow CFD simulation were validated by the comparison with experimental results. The investigation was made on the mid-section of the 48" long rotor blade and it was focused on the effect of shock-wave interactions with shear layers. This interaction results in the laminar/turbulent transition where separated flow occurs and it has impacts on flow structure and the blade cascade losses. Numerical simulations were carried out by two different codes: the commercial code NUMECA based on the gamma-Re transition model connected with the SST k-epsilon/k-omega turbulence model and in-house code of the Dept. of Technical mathematics, CTU Prague/ Institute of Thermodynamics in Prague. Simulations of the laminar and the fully turbulent flows were accomplished for comparison using the same numerical approach.
Keywords: blade cascade; CFD; steamm turbine; transition model; validation
Project no.: TA03020277 (CEP), GAP101/12/1271 (CEP)
Funding provider: GA TA ČR, GA ČR
Host item entry: Turbostroje 2015, ISBN 978-80-905040-5-9

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/11104/0254453

Permalink: http://www.nusl.cz/ntk/nusl-201366


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Research > Institutes ASCR > Institute of Thermomechanics
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