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Numerical investigation of three-dimensional partial cavitation in a Venturi geometry

Article dans une revue avec comité de lecture
Auteur
GOUIN, Camille
JUNQUEIRA-JUNIOR, Carlos
GONCALVES DA SILVA, Eric
ccROBINET, Jean-Christophe
134975 Laboratoire de Dynamique des Fluides [DynFluid]

URI
http://hdl.handle.net/10985/20502
DOI
10.1063/5.0052913
Date
2021
Journal
Physics of Fluids

Résumé

Sheet cavitation appears in many hydraulic applications and can lead to technical issues. Some fundamental outcomes, such as, the complex topology of 3-dimensional cavitation pockets and their associated dynamics need to be carefully visited. In the paper, the dynamics of partial cavitation developing in a 3D Venturi geometry and the interaction with sidewalls are numerically investigated. The simulations are performed using a one-fluid compressible Reynolds-averaged Navier–Stokes solver associated with a nonlinear turbulence model and a void ratio transport equation model. A detailed analysis of this cavitating flow is carried out using innovative tools, such as, spectral proper orthogonal decompositions. Particular attention is paid in the study of 3D effects by comparing the numerical results obtained with sidewalls and periodic conditions. A three-dimensional dynamics of the sheet cavitation, unrelated to the presence of sidewalls, is identified and discussed.

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DYNFLUID_POF_2021_GOUIN.pdf
Taille:
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Format:
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Fin d'embargo:
2021-12-20
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  • Dynamique des Fluides (DynFluid)

Documents liés

Visualiser des documents liés par titre, auteur, créateur et sujet.

  • Numerical investigation of sheet cavitation over a 3-D venturi configuration 
    Communication avec acte
    GOUIN, Camille; ccJUNQUEIRA JUNIOR, Carlos; ccGONCALVES, Eric; ccROBINET, Jean-Christophe (The Society of Naval Architects of Korea (SNAK), 2021-05)
    Sheet cavitation appears in many hydraulic applications and can lead to technical issues. Numerical simulation is a pertinent way to study the phenomenon. A numerical tool based on 1-fluid compressible RANS equations with ...
  • Study on the Resolution of Large-Eddy Simulations for Supersonic Jet Flows 
    Conférence invitée
    JUNQUEIRA-JUNIOR, Carlos; F. ABREU, Diego; T. V. DAURICIO, Eron; F. AZEVEDO, João Luiz (AIAA, 2022-06)
    The present study is concerned with large-eddy simulations (LES) of supersonic jet flows. The work addresses, in particular, the simulation of a perfectly expanded free jet flow with an exit Mach number of 1.4 and an exit ...
  • Comparison of Shock-Boundary Layer Interactions in Adiabatic and Isothermal Supersonic Turbine Cascades 
    Conférence invitée
    JUNQUEIRA-JUNIOR, Carlos; R. WOLF, William; F. S. LUI, Hugo; R. RICCIARDI, Tulio (AIAA, 2022-06)
    Wall-resolved large eddy simulations are employed to investigate the shock-boundary layer interactions (SBLIs) in a supersonic turbine cascade. An analysis of the suction side separation bubbles forming due to the SBLIs ...
  • A comparison of low and high-order methods for the simulation of supersonic jet flows 
    Conférence invitée
    F. ABREU, Diego; T. V. DAURICIO, Eron; F. AZEVEDO, João Luiz; JUNQUEIRA-JUNIOR, Carlos (ABCM, 2021-11)
    The present work compares results for different numerical methods in search of alternatives to improve the quality of large-eddy simulations for the problem of a supersonic turbulent jet flows. Previous work has analyzed ...
  • On the scalability of CFD tool for supersonic jet flow configurations 
    Article dans une revue avec comité de lecture
    JUNQUEIRA-JUNIOR, Carlos; AZEVEDO, João Luiz F.; PANETTA, Jairo; WOLF, William R.; YAMOUNI, Sami (Elsevier, 2020)
    New regulations are imposing noise emissions limitations for the aviation industry which are pushing researchers and engineers to invest efforts in studying the aeroacoustics phenomena. Following this trend, an in-house ...

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