• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Laboratoire de Mécanique des Fluides de Lille (LMFL)
  • View Item
  • Home
  • Laboratoire de Mécanique des Fluides de Lille (LMFL)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Analysis of the cavitation instabilities with time-resolved stereo and multiplane Particle Image Velocimetry

Article dans une revue avec comité de lecture
Author
LONG, Kunpeng
531216 Laboratoire de Mécanique des Fluides de Lille – Kampé de Fériet - UMR 9014 [LMFL]
GE, Mingming
47147 Virginia Tech [Blacksburg]
ccBAYEUL-LAINÉ, Annie-Claude
531216 Laboratoire de Mécanique des Fluides de Lille – Kampé de Fériet - UMR 9014 [LMFL]
COUTIER-DELGOSHA, Olivier
47147 Virginia Tech [Blacksburg]
531216 Laboratoire de Mécanique des Fluides de Lille – Kampé de Fériet - UMR 9014 [LMFL]

URI
http://hdl.handle.net/10985/23042
DOI
10.1063/5.0126317
Date
2022-11
Journal
Physics of fluids

Abstract

The present paper is devoted to the analysis of the various instabilities of cavitation attached to a two-dimensional (2D) profile. Time resolved stereo Particle Image Velocimetry (PIV) was conducted in a small-scale 2D venturi type section, in different vertical planes in the streamwise direction, located at varying positions in the depth of the channel. These experiments enabled to obtain the time evolution of the three components of the velocity field in the cavitation area, and to derive the time-averaged gradients in the spanwise direction. Test cases at various Reynolds number were conducted, maintaining either the pressure or the cavitation number constant, to discuss the impact of these parameters on the flow. Then, the attention was focused on three distinct flow dynamics, namely sheet cavitation, where no large-scale instability can be detected, single cloud cavitation, where a large cloud of vapor is shed periodically at the rear of the cavity, and multi-cloud cavitation, where the process is more complex, as more than one clouds are shed downstream. The data reveal that the structure and the structure of the re-entrant jet, which is one of the primary mechanisms of cloud cavitation, is more complex than reported in the previous studies. Although the jet can be detected as an intermittent low speed reverse flow in the streamwise direction, it is actually made of successive vortices about the channel depth, which are convected downstream while expanding in the vertical direction, causing the cavity lift and thus contributing to its final split and the cloud shedding

Files in this item

Name:
LMFL_POF_2022_Long et al.pdf
Size:
3.915Mb
Format:
PDF
Embargoed until:
2023-06-01
View/Open

Collections

  • Laboratoire de Mécanique des Fluides de Lille (LMFL)

Related items

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

  • Experimental investigation of three-dimensional effects in cavitating flows with time-resolved stereo Particle Image Velocimetry Physics of Fluids 
    Article dans une revue avec comité de lecture
    LONG, Kunpeng; ccCOUTIER-DELGOSHA, Olivier; ccBAYEUL-LAINÉ, Annie-Claude (AIP, 2023-02)
    The present paper is devoted to characterizing the three-dimensional effects in a cavitating flow generated in a Venturi-type profile. Experimental measurements based on 2D3C(Two-dimensionalthree-component) stereoscopic ...
  • Numerical study of a sinusoidal transverse propeller 
    Communication avec acte
    FASSE, Guillaume; BAYEUL-LAINE, Annie-Claude; COUTIER-DELGOSHA, Olivier; CURUTCHET, Arnaud; PAILLARD, Benoît; HAUVILLE, Frédéric (2018)
    In order to obtain higher propulsion efficiency for marine transportation, the authors have numerically tested a novel trochoidal propeller using a sinusoidal blade pitch function. The main results presented here are the ...
  • INDOOR CLIMATE QUALITY ASSESSMENT IN HIGH SCHOOL CLASSROOM : VENTILATION STRATEGIES AND OCCUPANCY MANAGEMENT 
    Communication avec acte
    ALLAB, Yacine; KINDINIS, Andrea; BAYEUL-LAINE, Annie-Claude; SIMONET, Sophie; COUTIER-DELGOSHA, Olivier (2014)
    More than a well-being, providing a good Indoor Climate Quality (ICQ) in education buildings is necessary for students’ health and in order to maximize academic results. In the context of a research focusing on hybrid ...
  • Numerical Investigation of the Effects of Nonsinusoidal Motion Trajectory on the Propulsion Mechanisms of a Flapping Airfoil 
    Article dans une revue avec comité de lecture
    BOUDIS, A.; BAYEUL-LAINE, Annie-Claude; BENZAOUI, A.; OUALLI, H.; GUERRI, O.; COUTIER-DELGOSHA, Olivier (American Society of Mechanical Engineers, 2019)
    The effect of nonsinusoidal trajectory on the propulsive performances and the vortex shedding process behind a flapping airfoil is investigated in this study. A movement of a rigid NACA0012 airfoil undergoing a combined ...
  • Direct Numerical Simulation of Shallow Water Breaking Waves Generated by Wave Plate 
    Communication avec acte
    LIU, Shuo; WANG, Hui; BAYEUL-LAINÉ, Annie-Claude; COUTIER-DELGOSHA, Olivier (Department of Fluid Mechanics Budapest University of Technology and Economics, 2022-09)
    We present direct numerical simulation of breaking waves in shallow water generated by the wave plate. The open-source Basilisk solver is used to solve the incompressible, variable-density, twophase Navier-Stokes equations ...

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