Modelling of Flow in Linear Blade Cascade with Thick Trailing Edge at a Lower Reynolds Number

0481407 - ÚT 2018 RIV CZ eng C - Conference Paper (international conference)
Straka, P. - Příhoda, Jaromír
Modelling of Flow in Linear Blade Cascade with Thick Trailing Edge at a Lower Reynolds Number.
Engineering Mechanics 2017. Brno: University of technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, 2017 - (Fuis, V.), s. 930-933. ISBN 978-80-214-5497-2. ISSN 1805-8248.
[Engineering Mechanics 2017 /23./. Svratka (CZ), 15.05.2017-18.05.2017]
R&D Projects: GA TA ČR(CZ) TA04020129
Institutional support: RVO:61388998
Keywords : linear blade cascade * boundary layer transition * vortex series
OECD category: Fluids and plasma physics (including surface physics)

In the paper there are compared results of numerical simulation of compressible turbulent flow through a low-pressure turbine blade cascade with relatively thick trailing edges for various physical models. Steady, unsteady, fully turbulent, transitional, two-dimensional and three-dimensional models are compared. Results show that: a) steady simulation gives an incorrect prediction of the boundary layer development, b) two-dimensional unsteady simulation leads to inaccurate prediction of the far wake development and c) only three-dimensional unsteady transitional simulation gives sufficiently accurate prediction. Results of numerical simulations are compared with the experimental data.
Permanent Link: http://hdl.handle.net/11104/0279591