Transition Model Application on Mid-Section Turbine Blade Cascade

0446260 - ÚT 2016 IT eng C - Conference Paper (international conference)
Váchová, J. - Luxa, Martin - Příhoda, Jaromír - Šimurda, David
Transition Model Application on Mid-Section Turbine Blade Cascade.
Proceedings of the 12th International Symposium on Experimental Computational Aerothermodynamics of Internal Flows. Lerici, 2015, s. 1-8.
[International Symposium on Experimental Computational Aerothermodynamics of Internal Flows : ISAIF /12./. Lerici (IT), 13.07.2015-16.07.2015]
R&D Projects: GA TA ČR(CZ) TA03020277; GA ČR GAP101/12/1271
Institutional support: RVO:61388998
Keywords : blade cascade * long turbine rotor blade * mid-section * optical methods * CFD modelling
Subject RIV: BK - Fluid Dynamics

The paper deals with the validation of numerical data by the comparison with experimental results. The investigation was made on the mid-section of the rotor blade 48" long 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 carried out by the commercial code NUMECA were based on the g-Re transition model connected with the SST k-w/k-e turbulence model. Simulations of the laminar and the fully turbulent flows were accomplished for comparison using the same numerical approach.
Permanent Link: http://hdl.handle.net/11104/0254455