Rotating instability in the vaneless diffuser of a radial flow pump

The paper refers to the behavior of a vaneless diffuser of a radial flow pump in partial flow operating conditions. Some experimental data have been obtained using 2D/2C PIV and unsteady pressure measurements within the diffuser, in various operating conditions. The experimental results at the lower...

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Bibliographic Details
Published in:	Journal of thermal science Vol. 17; no. 4; pp. 368 - 374
Main Authors:	Dazin, A., Coutier-Delgosha, O., Dupont, P., Coudert, S., Caignaert, G., Bois, G.
Format:	Journal Article
Language:	English
Published:	Heidelberg SP Science Press 01-12-2008 Springer Verlag (Germany)
Subjects:	Classical and Continuum Physics Engineering Fluid Dynamics Engineering Thermodynamics Heat and Mass Transfer Physics Physics and Astronomy Instability Vaneless diffuser Radial flow pump Pressure measurements Particle Image Velocimetry 2D calculations
Online Access:	Get full text
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Summary:	The paper refers to the behavior of a vaneless diffuser of a radial flow pump in partial flow operating conditions. Some experimental data have been obtained using 2D/2C PIV and unsteady pressure measurements within the diffuser, in various operating conditions. The experimental results at the lower flow rate are compared with two-dimensional numerical calculations.
ISSN:	1003-2169 1993-033X
DOI:	10.1007/s11630-008-0368-3