Original title: Classical flutter analysis of low pressure steam turbine blade cascade using 3D boundary element method
Authors: Prasad, Chandra Shekhar ; Pešek, Luděk
Document type: Papers
Conference/Event: DYMAMESI 2019, Cracow (PL), 20190305
Year: 2019
Language: eng
Abstract: In this paper study of aeroelastic stability in steam turbine rotor is carried out using boundary element method. A mesh free fluid\nsolver is developed for fast estimation of unsteady aerodynamic loading and to estimate the aerodynamic damping in 3D blade cascade. The aerodynamic damping is estimated in traveling wave mode. The unsteady incompressible flow field is modeled using 3D surface Panel method. The proposed methodology successfully estimates aerodynamic damping with acceptable accuracy the for the aeroelastic (classical \n flutter) analysis of 3D blade cascade. The simulated results are compared with experimental data. The simulated aerodynamic damping shows good agreement with\nexperimental results. The present methodology shows significant reduction in computational time over computational fluid dynamic solvers.
Keywords: aerodynamic damping; aeroelasticity; classical flutter; panel method; steam turbine; traveling wave mode
Project no.: StrategieAV21/3, GC19-02288J (CEP)
Funding provider: AV ČR, GA ČR
Host item entry: The International Colloquium Dynamics of Machines and Mechanical Systems with Interactions : DYMAMESI 2019, ISBN 978-80-87012-70-3

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/11104/0302320

Permalink: http://www.nusl.cz/ntk/nusl-407943


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Research > Institutes ASCR > Institute of Thermomechanics
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