Hub wall rotation influence on high-speed compressor cascade performance

Doukelis, A; Mathioudakis, K; Papailiou, K

dc.contributor.author	Doukelis, A	en
dc.contributor.author	Mathioudakis, K	en
dc.contributor.author	Papailiou, K	en
dc.date.accessioned	2014-03-01T01:16:37Z
dc.date.available	2014-03-01T01:16:37Z
dc.date.issued	2001	en
dc.identifier.issn	0748-4658	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14125
dc.subject	High Speed	en
dc.subject.classification	Engineering, Aerospace	en
dc.subject.other	Boundary layers	en
dc.subject.other	Energy transfer	en
dc.subject.other	Probes	en
dc.subject.other	Turbomachine blades	en
dc.subject.other	Viscous flow	en
dc.subject.other	Hub walls	en
dc.subject.other	Mach nubmer	en
dc.subject.other	Compressors	en
dc.title	Hub wall rotation influence on high-speed compressor cascade performance	en
heal.type	journalArticle	en
heal.identifier.primary	10.2514/2.5823	en
heal.identifier.secondary	http://dx.doi.org/10.2514/2.5823	en
heal.language	English	en
heal.publicationDate	2001	en
heal.abstract	The influence of the magnitude of the relative wall speed on the performance of an annular compressor cascade with hub clearance is examined. Five-hole probe measurements, conducted at the inlet and outlet of the cascade, are used to derive blade performance characteristics, in the form of loss and turning distributions. Characteristics are presented in the form of circumferentially mass-averaged profiles, whereas distributions on the exit plane provide information useful to interpret the performance of the blading. Four different rotational speeds of the hub have been examined, giving the possibility to observe the dependence of performance characteristics on hub rotational speed. Increasing the rotational speed is found to improve the performance of the cascade by decreasing losses in the clearance region, while it affects the flow in the entire passage.	en
heal.publisher	AMER INST AERONAUT ASTRONAUT	en
heal.journalName	Journal of Propulsion and Power	en
dc.identifier.doi	10.2514/2.5823	en
dc.identifier.isi	ISI:000169952700020	en
dc.identifier.volume	17	en
dc.identifier.issue	4	en
dc.identifier.spage	902	en
dc.identifier.epage	908	en