Assessment of Various Converging Inlet Nozzles for Wind Tunnel Using CFD

0583371 - ÚT 2024 CZ eng C - Conference Paper (international conference)
Kosiak, Pavlo - Radnic, Tomáš - Mamula, Milan - Hála, Jindřich - Šimurda, David - Luxa, Martin
Assessment of Various Converging Inlet Nozzles for Wind Tunnel Using CFD.
Proceedings of Topical Problems of Fluid Mechanics 2022. Prague: Institute of Thermomechanics AS CR, 2022 - (Šimurda, D.; Bodnár, T.), s. 95-102. ISBN 978-80-87012-77-2. ISSN 2336-5781.
[Topical Problems of Fluid Mechanics 2022. Prague (CZ), 16.02.2022-18.02.2022]
R&D Projects: GA ČR(CZ) GA20-11537S
Institutional support: RVO:61388998
Keywords : CFD * ANSYS CFX * converging nozzle * wind tunnel design
OECD category: Applied mechanics
http://www2.it.cas.cz/fm2015/im/admin/showfile/data/my/Papers/2022/14-TPFM2022.pdf

A new calibration tunnel intended for pressure probe calibration is being designed at the Aerodynamic Laboratory of the Institute of Thermomechanics of the Czech Academy of Sciences (IT CAS). A critical part of the design is the converging nozzle since it can substantially affect the resulting flow field in the test section. Three types of nozzles were chosen for the CFD investigation: two-sine, Vitoshinski, and Vagt. For each type of nozzle, two configurations were considered: long (645 mm) and short (353mm). Flow of the viscous, compressible fluid through all the variants was simulated using Ansys CFX commercial software. Results proved the Vagt nozzle to have the most uniform velocity profile and zero curvature at its end making it the most suitable for the intended use.
Permanent Link: https://hdl.handle.net/11104/0351898