Modelling of the bypass-transition in the linear turbine blade cascade

0383582 - ÚT 2013 RIV AT eng C - Konferenční příspěvek (zahraniční konf.)
Straka, P. - Příhoda, Jaromír
Modelling of the bypass-transition in the linear turbine blade cascade.
6th European Congress on Computational Methods in Applied Sciences and Engineering. Vienna: Vienna University of Technology, 2012, s. 1-15. ISBN 978-3-9502481-9-7.
[ECCOMAS 2012 /6./. Vienna (AT), 10.09.2012-14.09.2012]
Grant CEP: GA ČR(CZ) GAP101/10/1329
Institucionální podpora: RVO:61388998
Klíčová slova: computational fluid dynamics * bypass-transition * turbomachinery
Kód oboru RIV: BK - Mechanika tekutin

This paper deals with modelling of the transitional flow in linear turbine blade cascade. The algebraic bypass-transition model based on the equation for the intermittency coefficient which is implemented into the in-house numerical code is described. Proposed model is validated using test cases of the ERCOFTAC database (flow over flat plate without and with pressure gradient) and for flow in turbine blade cascade. The model was applied for calculation of flow in subsonic linear turbine blade cascade in a wide range of output Reynolds number. Results shows that an integral characteristics of the blade cascade (such as kinetic energy losses, total pressure losses, output Mach number) strongly depends on the development of the boundary layer
Trvalý link: http://hdl.handle.net/11104/0213475