Original title: Fast estimation of flutter parameters of steam turbine blades using boundary element methods
Authors: Prasad, Chandra Shekhar ; Pešek, Luděk
Document type: Papers
Conference/Event: DYMAMESI 2018 - Dynamics of Machines and Mechanical Systems with Interactions, Prague (CZ), 20180306
Year: 2018
Language: eng
Abstract: In the present paper the classical flutter parameters in turbomachinery cascade such as aerodynamic damping estimation using fast numerical method is described. The unsteady aerodynamic loading and the aerodynamic damping (AD) coefficient of the vibrating cascades is estimated by 2D boundary elementmethod such as source and doublet panel method (PM). To estimate the flutter parameters aerodynamic influence coefficient traveling wave mode (TWM)method is adopted. The experimental aerodynamic damping is compared against simulated results. The result demonstrate that potential flow based boundary elements method can estimate the AD with desired accuracy and less computational time.
Keywords: aerodynamic damping; aeroelasticity; classical flutter; turbomachinary; unsteady panel method
Project no.: GA16-04546S (CEP)
Funding provider: GA ČR
Host item entry: DYMAMESI 2018 - Proceedings, ISBN 978-80-87012-66-6

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/11104/0290179

Permalink: http://www.nusl.cz/ntk/nusl-390111


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