Title:	CFD prediction of flutter of turbine blades and comparison with an experimental test case
Other Titles:	CFD predikce flutteru turbinových lopatek a srovnání s experimentem
Authors:	Sláma, Václav Rudas, Bartoloměj Ira, Jiří Macálka, Aleš Eret, Petr Tsymbalyuk, Volodymyr
Citation:	SLÁMA, V., RUDAS, B., IRA, J., MACÁLKA, A., ERET, P., TSYMBALYUK, V. CFD prediction of flutter of turbine blades and comparison with an experimental test case. In: XXI international scientific conference: the application of experimental and numerical methods in fluid mechanics and energy 2018 (AEANMIFMAE-2018). Cedex: EDP Sciences, 2018. s. 02005, 1-8. ISSN: 2261-236X.
Issue Date:	2018
Publisher:	EDP Sciences
Document type:	konferenční příspěvek conferenceObject
URI:	2-s2.0-85048355552 http://hdl.handle.net/11025/31277
ISSN:	2261-236X
Keywords:	turbinová lopatková kaskáda;flutter
Keywords in different language:	turbine blade cascade;flutter
Abstract in different language:	Last stage blades are a key element of steam turbines and in many ways determine the turbine configuration alongside with the overall turbine performance. The total efficiency of the low pressure turbine section can be increased by extending the last stage blades. The design process of such long blades involves a flutter analysis using CFD tools which have to be validated by measurements in test facilities under various operating conditions. Experimental data obtained from a subsonic wind tunnel with an oscillating turbine blade cascade, which is available at the Department of Power System Engineering at the University of West Bohemia, was compared with simulations in ANSYS CFX currently used in the Doosan Skoda Power. The paper provides a brief summary of experimental rig description, CFD tool setup and the results for the case of a travelling wave mode with the pure torsion motion of amplitude of 0.5 degrees, Ma = 0.2, reduced frequency of 0.38 and angle of attack +5 degrees.
Rights:	© EDP Sciences
Appears in Collections:	OpenAire Konferenční příspěvky / Conference papers (KKE) OBD

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