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Numerical study of hydrodynamic impact on bubbly water

Communication avec acte
Auteur
ELHIMER, Mehdi
EL MALKI ALAOUI, Aboulghit
CROCI, Kilian
GABILLET, Céline
JACQUES, Nicolas

URI
http://hdl.handle.net/10985/9438
Date
2015

Résumé

The phenomenon of slamming on a bubbly liquid has many occurrences in marine and costal engineering. However, experimental or numerical data on the effect of the presence of gas bubbles within the liquid on the impact loads are scarce and the related physical mechanisms are poorly understood. The aim of the present paper is to study numerically the relationship between the void volume fraction and the impact loads. For that purpose, numerical simulations of the impact of a cone on bubbly water have been performed using the finite element code ABAQUS/Explicit. The present results show the diminution of the impact loads with the increase of the void fraction. This effect appears to be related to the high compressibility of the liquid-gas mixture.

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IRENav_OMAE_Juin2015_GABILLET.pdf
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Cette publication figure dans le(s) laboratoire(s) suivant(s)

  • Institut de Recherche de l’École navale (IRENAV)

Documents liés

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

  • The influence of aeration and compressibility on slamming loads during cone water entry 
    Article dans une revue avec comité de lecture
    ELHIMER, Mehdi; JACQUES, Nicolas; EL MALKI ALAOUI, Aboulghit; GABILLET, Céline (Elsevier, 2017)
    The problem of the impact between a rigid body and a gas-liquid mixture is relevant to various engineering applications, including the design of breakwaters and LNG containers. In the present study, the specific problem ...
  • Mitigation of underwater explosion effects by bubble curtains : experiments and modelling 
    Communication avec acte
    CROCI, Kilian; ARRIGONI, Michel; BOYCE, P; GABILLET, Céline; GRANDJEAN, Hervé; JACQUES, Nicolas; KERAMPRAN, Steven (2014)
    Mine fields and UneXploded Ordnances (UXO) become a danger regarding maritime activities. Since UXOs are strongly affected by marine corrosion after decades, they cannot be handled safely. A safe solution to get rid of ...
  • Attached cavitation in laminar separations within a transition to unsteadiness 
    Article dans une revue avec comité de lecture
    CROCI, Kilian; DANLOS, Amélie; BARAST, Luc; ccROBINET, Jean-Christophe; ccRAVELET, Florent (American Institute of Physics, 2019)
    Attached sheet cavitation is usually observed in turbulent water flows within small laminar separation bubbles which can provide favorable conditions for inception and attachment of cavities. In the present study, viscous ...
  • Development of Attached Cavitation at Very Low Reynolds Numbers from Partial to Super-Cavitation 
    Article dans une revue avec comité de lecture
    ccRAVELET, Florent; DANLOS, Amélie; ccBAKIR, Farid; CROCI, Kilian; ccKHELLADI, Sofiane; ccSARRAF, Christophe (MDPI AG, 2020)
    The present study focuses on the inception, the growth, and the potential unsteady dynamics of attached vapor cavities into laminar separation bubbles. A viscous silicon oil has been used in a Venturi geometry to explore ...
  • Exploring design space in embodiment design with consideration of models accuracy 
    Article dans une revue avec comité de lecture
    ccPERRY, Nicolas; AMINE, EL Mehdi; ccPAILHES, Jerome (Elsevier, 2015)
    Rework tasks in collaborative development projects dealing with immature design concepts are very frequent and are responsible of cost overruns and schedule delays. Taking into account uncertainty and accuracy of models ...

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