Název:
Transition Modelling on Separated Flow in Turbine Cascade
Autoři:
Louda, Petr ; Příhoda, Jaromír ; Kozel, K. Typ dokumentu: Příspěvky z konference Konference/Akce: Topical Problems of Fluid Mechanics 2017, Prague (CZ), 20170215
Rok:
2017
Jazyk:
eng
Abstrakt: 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.
Klíčová slova:
separation bubble; shock wave-boundary layer interaction; transition model; turbine cascade Číslo projektu: GAP101/12/1271 (CEP) Poskytovatel projektu: GA ČR Zdrojový dokument: Topical Problems of Fluid Mechanics 2017, ISBN 978-80-87012-61-1, ISSN 2336-5781