Topical Problems of Fluid Mechanics


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Institute of Thermomechanics AS CR, v.v.i. CTU in Prague Faculty of Mech. Engineering Dept. Tech. Mathematics MIO Université du Sud Toulon Var - AMU - CNRS - IRD Czech Pilot centre ERCOFTAC
Transition Modelling on Separated Flow in Turbine Cascade

P. Louda, J. Příhoda, K. Kozel

Abstract:
The work deals with numerical simulation of turbulent ow through turbine cascade by RANS model with model of transition to turbulence. Performance of two transition models is compared. First one is gamma-zeta model based on transition criteria, second one algebraic transition model based on the concept of laminar uctuations energy (Kubacki, Dick 2016). The criterion for transition in separated state is re-formulated in order to remove stream-wise non-local formulation. The performance of the transition models is observed on the shock wave - boundary layer interaction on turbine blade.

Keywords:
turbine cascade, transition model, separation bubble, shock wave-boundary layer interaction
Fulltext: PDF
DOI: https://doi.org/10.14311/TPFM.2017.027
In Proceedings Topical Problems of Fluid Mechanics 2017, Prague, 2017 Edited by David Šimurda and Tomáš Bodnár, pp. 211-220
ISBN 978-80-87012-61-1 (Print)
ISSN 2336-5781 (Print)
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