About: Aerodynamic Data for Two Variants of Root Turbine Blade Sections for A 54%22 Turbine Rotor Blade

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Aerodynamic investigations were performed on planar blade cascades representing two alternative root sections of rotor blades 54%22 in length with straight fir-tree root. Each of the variants was designed for different number of blades in the rotor. This paper presents the results of measurements showing the dependency of the kinetic energy loss coefficient and the exit flow angle on the exit isoentropic Mach number and the angle of incidence. Images of the flow fields are also presented. The experimental data is analyzed to assess and document the difference between the two root section designs. Results show that requirement of straight fir tree root leading to high design incidence angles significantly limit operation range. Also in case of root sections with high exit Mach numbers a limit load conditions are an issue. In order to utilize available pressure drop blade cascade throat/pitch ratios should be kept as high as possible which favorites variant with lower number of blades and higher outlet metal angle (relative to axial direction). Aerodynamic investigations were performed on planar blade cascades representing two alternative root sections of rotor blades 54%22 in length with straight fir-tree root. Each of the variants was designed for different number of blades in the rotor. This paper presents the results of measurements showing the dependency of the kinetic energy loss coefficient and the exit flow angle on the exit isoentropic Mach number and the angle of incidence. Images of the flow fields are also presented. The experimental data is analyzed to assess and document the difference between the two root section designs. Results show that requirement of straight fir tree root leading to high design incidence angles significantly limit operation range. Also in case of root sections with high exit Mach numbers a limit load conditions are an issue. In order to utilize available pressure drop blade cascade throat/pitch ratios should be kept as high as possible which favorites variant with lower number of blades and higher outlet metal angle (relative to axial direction). (en)
Title	Aerodynamic Data for Two Variants of Root Turbine Blade Sections for A 54%22 Turbine Rotor Blade Aerodynamic Data for Two Variants of Root Turbine Blade Sections for A 54%22 Turbine Rotor Blade (en)
skos:prefLabel	Aerodynamic Data for Two Variants of Root Turbine Blade Sections for A 54%22 Turbine Rotor Blade Aerodynamic Data for Two Variants of Root Turbine Blade Sections for A 54%22 Turbine Rotor Blade (en)
skos:notation	RIV/61388998:_____/14:00429082!RIV15-GA0-61388998
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP101/10/1329), P(TA03020277)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Šimurda, David Luxa, Martin
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav termomechaniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	1778
http://linked.open...ai/riv/idVysledku	RIV/61388998:_____/14:00429082
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	steam turbine; rotor; blade cascade; root section (en)
http://linked.open.../riv/klicoveSlovo	steam turbine blade cascade rotor root section
http://linked.open...ontrolniKodProRIV	[62F16C39089D]
http://linked.open...v/mistoKonaniAkce	Düsseldorf
http://linked.open...i/riv/mistoVydani	Düsseldorf
http://linked.open...i/riv/nazevZdroje	Proceedings of the ASME Turbo Expo 2014
http://linked.open...in/vavai/riv/obor	BK
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Numerical and experimental research on the flow in axial turbine cascades Aerodynamics of Highly Loaded Blade Cascades
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Šimurda, David Luxa, Martin Synáč, J. Šafařík, P. Rudas, B.
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2014-06-16 (xsd:date)
number of pages	13 (xsd:int)
http://bibframe.org/vocab/doi	10.1115/GT2014-25323
http://purl.org/ne...btex#hasPublisher	ASME
https://schema.org/isbn	978-0-7918-4562-2

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