Inverse inviscid method for the design of quasi-three-dimensional turbomachinery cascades

Bonataki, E; Chaviaropoulos, P; Papailiou, KD

dc.contributor.author	Bonataki, E	en
dc.contributor.author	Chaviaropoulos, P	en
dc.contributor.author	Papailiou, KD	en
dc.date.accessioned	2014-03-01T01:09:18Z
dc.date.available	2014-03-01T01:09:18Z
dc.date.issued	1993	en
dc.identifier.issn	0098-2202	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10882
dc.subject	Three Dimensional	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.other	Compressible flow	en
dc.subject.other	Design	en
dc.subject.other	Differential equations	en
dc.subject.other	Intake systems	en
dc.subject.other	Integration	en
dc.subject.other	Inverse problems	en
dc.subject.other	Mathematical models	en
dc.subject.other	Morphology	en
dc.subject.other	Numerical methods	en
dc.subject.other	Pressure	en
dc.subject.other	Turbomachine blades	en
dc.subject.other	Velocity	en
dc.subject.other	Dirichlet type boundary conditions	en
dc.subject.other	Elliptic type partial differential equations	en
dc.subject.other	Flow angle fields	en
dc.subject.other	Inverse inviscid method	en
dc.subject.other	Irrotational flows	en
dc.subject.other	Ordinary differential equations	en
dc.subject.other	Periodic type boundary conditions	en
dc.subject.other	Turbomachine blade shapes	en
dc.subject.other	Cascades (fluid mechanics)	en
dc.subject.other	Blades	en
dc.subject.other	Cascades	en
dc.subject.other	Design	en
dc.subject.other	Turbomachinery	en
dc.title	Inverse inviscid method for the design of quasi-three-dimensional turbomachinery cascades	en
heal.type	journalArticle	en
heal.identifier.primary	10.1115/1.2910093	en
heal.identifier.secondary	http://dx.doi.org/10.1115/1.2910093	en
heal.language	English	en
heal.publicationDate	1993	en
heal.abstract	The calculation of the blade shape, when the desired velocity distribution is imposed, has been the object of numerous investigations in the past. The object of this paper is to present a new method suitable for the design of turbomachinery stator and rotor blade sections, lying on an arbitrary axisymmetric stream-surface with varying streamtube width. The flow is considered irrotational in the absolute frame of reference and compressible. The given data are the streamtube geometry, the number of blades, the inlet flow conditions and the suction and pressure side velocity distributions as functions of the normalized arc-length. The output of the computation is the blade shape that satisfies the above data. The method solves an elliptic type partial differential equation for the velocity modulus with Dirichlet and periodic type boundary conditions on the (potential function, stream function)-plane (PHI, PSI). The flow angle field is subsequently calculated solving an ordinary differential equation along the iso-PHI or iso-PSI lines. The blade coordinates are, finally, computed by numerical integration. A set of closure conditions has been developed and discussed in the paper. The method is validated on several test cases and a discussion is held concerning its application and limitations.	en
heal.publisher	ASME-AMER SOC MECHANICAL ENG	en
heal.journalName	Journal of Fluids Engineering, Transactions of the ASME	en
dc.identifier.doi	10.1115/1.2910093	en
dc.identifier.isi	ISI:A1993KV01700019	en
dc.identifier.volume	115	en
dc.identifier.issue	1	en
dc.identifier.spage	121	en
dc.identifier.epage	127	en