• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Laboratoire Ingénierie des fluides Systèmes énergétiques (LIFSE)
  • View Item
  • Home
  • Laboratoire Ingénierie des fluides Systèmes énergétiques (LIFSE)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Cavitation control using passive flow control techniques

Article dans une revue avec comité de lecture
Author
ZARESHARIF, Mahshid
KINAHAN, David J.
DELAURE, Yan M. C.
ccRAVELET, Florent
1003528 Laboratoire d'Ingénierie des Fluides et des Systèmes Énergétiques [LIFSE]

URI
http://hdl.handle.net/10985/21361
DOI
10.1063/5.0071781
Date
2021
Journal
Physics of Fluids

Abstract

Passive flow control techniques, and particularly vortex generators have been used successfully in a broad range of aero- and hydrodynamics applications to alter the characteristics of boundary layer separation. This study aims to review how such techniques can mitigate the extent and impact of cavitation in incompressible flows. This review focuses first on vortex generators to characterize key physical principles. It then considers the complete range of passive flow control technologies, including surface conditioning and roughness, geometry modification, grooves, discharge, injection, obstacles, vortex generators, and bubble generators. The passive flow control techniques reviewed typically delay and suppress boundary layer separation by decreasing the pressure gradient at the separation point. The literature also identifies streamwise vortices that result in the transfer of momentum from the free stream to near-wall low energy flow regions. The area of interest concerns hydraulic machinery, whose performance and life span are particularly susceptible to cavitation. The impact on performance includes a reduction in efficiency and fluctuations in discharge pressure and flow, while cavitation can greatly increase wear of bearings, wearing rings, seals, and impeller surfaces due to excessive vibration and surface erosion. In that context, few studies have also shown the positive effects that passive controls can have on the hydraulic performance of centrifugal pumps, such as total head and efficiency. It is conceivable that a new generation of design in hydraulic systems may be possible if simple design features can be conceived to maximize power transfer and minimize losses and cavitation. There are still, however, significant research gaps in understanding a range of impact factors such as manufacturing processes, lifetime, and durability, and essentially how a static design can be optimized to deliver improved performance over a realistic range of operating conditions.

Files in this item

Name:
LIFSE_POF_2021_RAVALET.pdf
Size:
2.543Mb
Format:
PDF
View/Open

Collections

  • Laboratoire Ingénierie des fluides Systèmes énergétiques (LIFSE)

Related items

Showing items related by title, author, creator and subject.

  • High Accuracy Volume Flow Rate Measurement Using Vortex Counting 
    Article dans une revue avec comité de lecture
    ZAARAOUI, Abdelkader; MARGNAT, Florent; ccRAVELET, Florent; ccKHELLADI, Sofiane (Elsevier, 2013)
    A prototype device for measuring the volumetric flow-rate by counting vortices has been designed and realized. It consists of a square-section pipe in which are placed a two-dimensional bluff body and a strain gauge force ...
  • Influence of Reynolds number and forcing type in a turbulent von Karman flow 
    Article dans une revue avec comité de lecture
    SAINT-MICHEL, Brice; DUBRULLE, Bérengère; MARIÉ, Louis; DAVIAUD, François; ccRAVELET, Florent (Institute of Physics: Open Access Journals, 2014)
    We present a detailed study of a global bifurcation occuring in a turbulent von Kármán swirling flow. In this system, the statistically steady states progressively display hysteretic behaviour when the Reynolds number is ...
  • Experimental study of aerated cavitation in a horizontal venturi nozzle 
    Article dans une revue avec comité de lecture
    TOMOV, Petar; KHELLADI, Sofiane; RAVELET, Florent; SARRAF, Christophe; BAKIR, Farid; VERTENOEUIL, P. (Elsevier, 2015)
    The injection of bubbles into an already cavitating flow is a way of influencing the typical cavitating behavior. The present article deals with experiments on aerated and non-aerated cavitation in a transparent horizontal ...
  • Evidence for Forcing-Dependent Steady States in a Turbulent Swirling Flow 
    Article dans une revue avec comité de lecture
    SAINT-MICHEL, Brice; DUBRULLE, Bérengère; MARIÉ, Louis; DAVIAUD, François; ccRAVELET, Florent (American Physical Society, 2013)
    We study the influence on steady turbulent states of the forcing in a von Karman flow, at constant impeller speed, or at constant torque. We find that the different forcing conditions change the nature of the stability of ...
  • On the dynamics and breakup of a bubble immersed in a turbulent flow 
    Article dans une revue avec comité de lecture
    COLIN, Catherine; RISSO, Frédéric; ccRAVELET, Florent (American Institute of Physics, 2011)
    Experimental investigations of the dynamics of a deformable bubble rising in a uniform turbulent flow are reported. The turbulence is characterized by fast PIV. Time-resolved evolutions of bubble translation, rotation and ...

Browse

All SAMCommunities & CollectionsAuthorsIssue DateCenter / InstitutionThis CollectionAuthorsIssue DateCenter / Institution

Newsletter

Latest newsletterPrevious newsletters

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales