Original title: Modelling of running waves in turbine blades cascade
Authors: Půst, Ladislav ; Pešek, Luděk
Document type: Papers
Conference/Event: DYMAMESI 2017, Cracow (PL), 20170228
Year: 2017
Language: eng
Abstract: Dynamic properties of blades in the blade cascade excited by steam flow from the stationary bladed disk are investigated with the aim to explain origin and behaviour of running waves. It is shown that one of the most important reasons for existence of running waves is the running periodic forces from steam wakes due to different numbers of blades of stationary and rotating wheels. On a simplified computational model of disk with closed 10-blades bundle are presented resulting velocities, theirs directions and modes of forced running waves. The effect of these forced running waves on the existence of flutter waves will be shortly mentioned as well.
Keywords: backward running waves; blade cascade; delay of excitation forces; forward; turbine disk
Project no.: GA16-04546S (CEP)
Funding provider: GA ČR
Host item entry: DYMAMESI 2017, ISBN 978-80-87012-62-8

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/11104/0273609

Permalink: http://www.nusl.cz/ntk/nusl-363518


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