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

 
see the original item page
in the repository's web site and access all digital files if the item*
share




1991 (EN)
Unsteady flow calculation in a radial flow centrifugal pump with spiral casing (EN)

Papantonis Dimitris, E (EN)
Voutsinas Spyros, G (EN)
Morfiadakis Evangelos, E (EN)

N/A (EN)

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)

journalArticle

SPIRAL CASING (EN)
Mathematical Techniques--Boundary Element Method (EN)
Spiral Casings (EN)
Fluid Mechanics--Calculations (EN)
Flow of Fluids (EN)
VORTEX METHOD (EN)
UNSTEADY FLOW (EN)
BOUNDARY ELEMENT METHOD (EN)
CENTRIFUGAL PUMP (EN)
Pumps, Centrifugal (EN)
Radial Flows (EN)

Εθνικό Μετσόβιο Πολυτεχνείο (EL)
National Technical University of Athens (EN)

International Journal for Numerical Methods in Fluids (EN)

1991


JOHN WILEY & SONS LTD (EN)



*Institutions are responsible for keeping their URLs functional (digital file, item page in repository site)