Original title: Simple model for investigation of aerodynamic coupling in linear blade cascades
Authors: Chládek, Štěpán ; Pešek, Luděk ; Procházka, Pavel P.
Document type: Papers
Conference/Event: International colloquium DYMAMESI 2020, Praha (CZ), 20200303
Year: 2020
Language: eng
Abstract: Simple viscous-elastic model has been proposed for investigation of aerodynamic coupling in linear blade cascades. One blade is connected with both adjacent blades using idealized springs and dampers which represent viscous fluid. All blades may oscillate with one degree of freedom represented by vertical translation. Energy method using travelling waves model was utilized for aerodynamic damping coefficient derivation. The proposed model does not compute the damping values quantitatively, nevertheless it provides the damping shape analysis. Interesting results are presented within zero and low subsonic flow velocities, where the experiment included velocity flow field measurement.
Keywords: aerodynamic damping; linear cascade stability; PIV
Project no.: GA20-26779S (CEP), StrategieAV21/3
Funding provider: GA ČR, AV ČR
Host item entry: Dymamesi 2020, ISBN 978-80-87012-73-4

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0314730

Permalink: http://www.nusl.cz/ntk/nusl-432930


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Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers