Original title: Numerical and Experimental Investigation of the Flow Field in Five Blade Linear Cascade in Subsonic Flow
Authors: Šnábl, Pavel ; Chindada, Sony ; Bublík, O. ; Procházka, Pavel P. ; Prasad, Chandra Shekhar
Document type: Papers
Conference/Event: Computational Mechanics 2021 /36./, Srní (CZ), 20211108
Year: 2021
Language: eng
Abstract: In large steam turbines, last stage blades are very long and must be designed very thin and with no shroud to minimize the centrifugal force which leads to low eigenfrequencies and low structural damping. In this case, aero-elastic damping plays important role on last stage bladed disc’s dynamics. Three major aero-elastic issues found in turbomachinery are forced response, non-synchronous vibrations, and flutter. Flutter is an unstable, self-excited vibration resulting from coupling between the structural vibrations and unsteady aerodynamic forces. It is clear that this unstable behaviour must be avoided and predictions of flutter behaviour need to be performed during design stage of the turbine.\n
Keywords: ansys fluent; blade linear cascade; flow field; FlowPro; subsonic flow
Project no.: GA20-26779S (CEP)
Funding provider: GA ČR
Host item entry: Computational mechanics 2021. Proceedings of computational mechanics 2021, ISBN 978-80-261-1059-0
Note: Související webová stránka: https://dspace5.zcu.cz/handle/11025/46212

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: https://hdl.handle.net/11104/0352510

Permalink: http://www.nusl.cz/ntk/nusl-613904


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