Study on the Numerical Model of Transonic Wind Tunnel Test Section

0535235 - ÚT 2022 RIV CN eng J - Journal Article
Louda, Petr - Příhoda, Jaromír
Study on the Numerical Model of Transonic Wind Tunnel Test Section.
Journal of Thermal Science. Roč. 30, č. 1 (2021), s. 231-241. ISSN 1003-2169. E-ISSN 1993-033X
R&D Projects: GA TA ČR(CZ) TH02020057
Institutional support: RVO:61388998
Keywords : perforated wall model * transonic wind tunnel * turbine blade cascade
OECD category: Applied mechanics
Impact factor: 2.013, year: 2021
Method of publishing: Limited access
https://link.springer.com/article/10.1007/s11630-020-1277-3

The authors consider numerical simulations of transonic flows through various turbine cascades in a confined channel which approximates boundaries of real wind tunnel. The boundaries of the wind tunnel are impermeable or there can be permeable tailboards to diminish shock wave reflections. The mathematical model is based on Favre-averaged Navier-Stokes equations closed by a turbulence model and model of transition to turbulence. The mathematical model is solved by an implicit finite volume method with multi-block grids. Several types of turbine blade cascades with subsonic or supersonic inlet are presented. The results are compared with optical measurements and simulations of periodic cascades. The validity of experimental reference flow parameters in relation to computed flow patterns is discussed.
Permanent Link: http://hdl.handle.net/11104/0320172