English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The phenomena of vortex formation in relative flow field of a radial flow centrifugal pump, running at zero and part loads of the pump discharge, has been investigated. The flow field is described by two dimensional Poisson's equation, which has been solved numerically, in difference form, by relaxation technique. A physical model for the vortex formation andshedding mechanisms, at part loads, has been introduced. The effect of vortex shedding, from the impeller, on the pressure fluctuation at the pump exit has been also discussed. Experimental investigation has shown a satisfactory agraement between the measured and the theoretically predicted pressure fluctuations at part flow rates. At high flow rates, the viscosity effect on the vortex simulation model, has to be considered.

VORTEX SIMULATION IN RADIAL FLOW IMPELLERS OF CENTRIFUGAL PUMPS AT PART LOADS