HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Static pressure recovery analysis in the vane island diffuser of a centrifugal pump

Résumé : The overall performance of a vane-island type diffuser of a centrifugal pump model was obtained by means of directional probe traverses. These measurements were performed in an air model of a real hydraulic pump for five volume flow rates. Directional probe traverses are performed with a classical three-hole probe to cover most of the complete inlet section of the diffuser from hub to shroud and from pressure to suction side. Existing Particle image velocimetry (PIV) measurement results are also used to compare probe measurement results between the inlet and outlet throats of vane island diffuser at mid-span. Some assistance from already existing unsteady calculation, including leakage effects, is used to evaluate the numerical approach capability and to correctly define the mean initial conditions at impeller’s outlet section. Pressure recovery and the measured total pressure loss levels inside this particular vane diffuser geometry are then calculated. Detailed analysis of the flow structure at the inlet section of the vane island diffuser is presented to focus on pressure evolution inside the entire diffuser section for different flow rates. The combined effects of incidence angle and blockage distributions along hub to shroud direction are found to play an important role on loss distribution in such a diffuser.
Document type :
Journal articles
Complete list of metadata

Cited literature [19 references]  Display  Hide  Download

Contributor : Compte de Service Administrateur Ensam Connect in order to contact the contributor
Submitted on : Wednesday, June 19, 2019 - 4:56:40 PM
Last modification on : Wednesday, March 23, 2022 - 3:51:25 PM


Files produced by the author(s)



Qiaorui Si, Patrick Dupont, Annie-Claude Bayeul-LainÉ, Antoine Dazin, Olivier Roussette, et al.. Static pressure recovery analysis in the vane island diffuser of a centrifugal pump. Journal of Mechanical Science and Technology, Springer, 2016, 30 (2), pp.549-556. ⟨10.1007/s12206-016-0108-7⟩. ⟨hal-02160463⟩



Record views


Files downloads