Unsteady flow calculation in a radial flow centrifugal pump with spiral casing

Morfiadakis Evangelos, E; Voutsinas Spyros, G; Papantonis Dimitris, E

dc.contributor.author	Morfiadakis Evangelos, E	en
dc.contributor.author	Voutsinas Spyros, G	en
dc.contributor.author	Papantonis Dimitris, E	en
dc.date.accessioned	2014-03-01T01:08:35Z
dc.date.available	2014-03-01T01:08:35Z
dc.date.issued	1991	en
dc.identifier.issn	0271-2091	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10593
dc.subject	UNSTEADY FLOW	en
dc.subject	VORTEX METHOD	en
dc.subject	BOUNDARY ELEMENT METHOD	en
dc.subject	CENTRIFUGAL PUMP	en
dc.subject	SPIRAL CASING	en
dc.subject.classification	Computer Science, Interdisciplinary Applications	en
dc.subject.classification	Mathematics, Interdisciplinary Applications	en
dc.subject.classification	Mechanics	en
dc.subject.classification	Physics, Fluids & Plasmas	en
dc.subject.other	Fluid Mechanics--Calculations	en
dc.subject.other	Mathematical Techniques--Boundary Element Method	en
dc.subject.other	Pumps, Centrifugal	en
dc.subject.other	Radial Flows	en
dc.subject.other	Spiral Casings	en
dc.subject.other	Flow of Fluids	en
dc.title	Unsteady flow calculation in a radial flow centrifugal pump with spiral casing	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/fld.1650120907	en
heal.identifier.secondary	http://dx.doi.org/10.1002/fld.1650120907	en
heal.language	English	en
heal.publicationDate	1991	en
heal.abstract	The prediction of the two-dimensional unsteady flow established in a radial flow centrifugal pump is considered. Assuming the fluid incompressible and inviscid, the velocity field is represented by means of source and vorticity surface distributions as well as a set of point vortices. Using this representation, a grid-free (Lagrangian) numerical method is derived based on the coupling of the boundary element and vortex particle methods. In this context the source and vorticity surface distributions are determined through the non-entry boundary condition together with the unsteady Kutta condition. In order to satisfy Kelvin's theorem, vorticity is shed at the trailing edges of the impeller blades. Then the vortex particle method is used to approximate the convection of the free vorticity distribution. Results are given for a pump configuration experimentally tested by Centre Technique des Industries Mecaniques (CETIM). Comparisons between predictions and experimental data show the capability of the proposed method to reproduce the main features of the flow considered.	en
heal.publisher	JOHN WILEY & SONS LTD	en
heal.journalName	International Journal for Numerical Methods in Fluids	en
dc.identifier.doi	10.1002/fld.1650120907	en
dc.identifier.isi	ISI:A1991FM78600006	en
dc.identifier.volume	12	en
dc.identifier.issue	9	en
dc.identifier.spage	895	en
dc.identifier.epage	908	en