LOSS COEFFICIENT DEPENDENCE OF TURBINE BLADE CASCADE

0346319 - ÚT 2011 RIV GB eng C - Conference Paper (international conference)
Matějka, M. - Šafařík, P. - Luxa, Martin - Šimurda, David - Synáč, J.
LOSS COEFFICIENT DEPENDENCE OF TURBINE BLADE CASCADE.
Proceedings of ASME Turbo Expo 2010: Power for Land, Sea and Air GT2010. Glasgow: ASME, 2010, s. 1-9. ISBN 978-0-7918-4402-1.
[ASME Turbo Expo 2010. Glasgow (GB), 14.06.2010-18.06.2010]
R&D Projects: GA MŠMT(CZ) 1M06031; GA AV ČR(CZ) IAA200760801
Institutional research plan: CEZ:AV0Z20760514
Keywords : loss coefficient * turbine cascade * pneumatic measurement
Subject RIV: BK - Fluid Dynamics
http://www.asmeconferences.org/TE10/ConfSpecInfo.cfm

This paper presents the experimental results of aerodynamic research performed on a blade cascade representing the midsection of 1220 mm long rotor blades of the last stage of a large output steam turbine. The operational regime of the blade cascade is characterized by supersonic exit velocity. Isentropic exit Mach number M2is = 1.323. The experimental data analysis concerns pneumatic measurements to calculate the total pressure and the kinetic energy loss coefficients, and to evaluate them mainly with respect to the aperiodicity of the flow field. The flow structure is also studied on the basis of results obtained by means of optical methods, such as schlieren and interferometric methods.
Permanent Link: http://hdl.handle.net/11104/0187384