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Numerical Modelling of Transonic Flows in Wind Tunnel Test Section

SYSNO ASEP	0495981
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	Numerical Modelling of Transonic Flows in Wind Tunnel Test Section
Author(s)	Louda, Petr (UT-L)_{RID, ORCID} Příhoda, Jaromír (UT-L)_{RID, ORCID}
Source Title	Conference on Modelling Fluid Flow CMFF’18. - Budapest : University of Technology and Economics Budapest, 2018 / Vad J. - ISBN 978-96-331-3297-5
Number of pages	8 s.
Publication form	Medium - C
Action	Conference on Modelling Fluid Flow CMFF’18
Event date	04.09.2018 - 07.09.2018
VEvent location	Budapest
Country	HU - Hungary
Event type	WRD
Language	eng - English
Country	HU - Hungary
Keywords	perforated wall model ; transonic wind tunnel ; turbine blade cascade
Subject RIV	BK - Fluid Dynamics
OECD category	Applied mechanics
R&D Projects	TH02020057 GA TA ČR - Technology Agency of the Czech Republic (TA ČR)
Institutional support	UT-L - RVO:61388998
Annotation	The paper deals with numerical simulations of transonic flows through various turbine cascades in a confined channel corresponding to 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 rotor rows in the last stage of low pressure cylinder are presented, with subsonic or supersonic inlet. 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.
Workplace	Institute of Thermomechanics
Contact	Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823
Year of Publishing	2019

Number of the records: 1