Results 241 to 250 of about 8,125 (264)

Re-entrant jet mechanism for periodic cavitation shedding in a cylindrical orifice

open access: yesInternational Journal of Heat and Fluid Flow, 2014
Abstract Periodic shedding of cloud cavitation is a common form of cavitation instability. The motion of a re-entrant liquid jet is central to this process but the mechanism which drives the phenomenon remains unclear, particularly for cavitation in cylindrical orifices.
Cameron Stanley   +2 more
exaly   +3 more sources

Sheet Cavitation and Cloud Cavitation, Re-Entrant Jet and Three-Dimensionality

open access: yes, 1998
The unsteady behaviour of a sheet cavity on a hydrofoil under stationary conditions is important with respect to both noise generation and erosion. Observations of two-dimensional as well as three-dimensional cavities are performed. From the observation it is concluded that the formation of a re-entrant jet is of major importance to explain the ...
de Lange, D.F., de Bruin, G.J.
openaire   +3 more sources
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Numerical investigation of condensation shock and re-entrant jet dynamics around a cavitating hydrofoil using a dynamic cubic nonlinear subgrid-scale model

Applied Mathematical Modelling, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ziyang Wang, Huaiyu Cheng, Bin Ji
exaly   +2 more sources

On the Transition Between Re-Entrant Jet and Condensation Shock Mechanism in Sheet to Cloud Cavitation

Volume 2: Multiphase Flow (MFTC); Computational Fluid Dynamics (CFDTC); Micro and Nano Fluid Dynamics (MNFDTC), 2022
Abstract Sheet to cloud cavitation over a wedge is investigated using numerical simulations performed at a Reynolds number Re = 200,000 and cavitation numbers ranging from σ = 1.44 to σ = 2.18. The multiphase fluid is described using a homogeneous mixture model, and the governing equations are the compressible Navier Stokes equations for
Diego Vaca-Revelo, Aswin Gnanaskandan
exaly   +2 more sources

Investigation of a re-entrant jet reflection at an inclined cavity closure line

European Journal of Mechanics, B/Fluids, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Matevž Dular
exaly   +2 more sources

Re-Entrant Jet Modeling of Partial Cavity Flow on Two-Dimensional Hydrofoils

Journal of Fluids Engineering, Transactions of the ASME, 1999
A potential based panel method is developed to predict the partial cavity flow on two-dimensional hydrofoil sections. The Dirichlet type dynamic boundary condition on the cavity surface and the Neumann type kinematic boundary condition on the wetted section surface are enforced. A re-entrant jet cavity termination model is introduced.
Kuiper G
exaly   +2 more sources

Experimental and numerical investigation of ventilated cavitating flow with special emphasis on gas leakage behavior and re-entrant jet dynamics

Ocean Engineering, 2015
Abstract The objective of this paper is to investigate the ventilated cavitating flow structure by combining experimental and numerical methods. A high-speed camera technique is used to record cavity evolution patterns. The numerical simulation is performed by CFX with a free surface model and a filter-based model, and the gravity effect is ...
Zhiying Wang, Biao Huang, Mindi Zhang
exaly   +2 more sources

Re-Entrant Jet Modeling of Partial Cavity Flow on Three-Dimensional Hydrofoils

Journal of Fluids Engineering, Transactions of the ASME, 1999
A potential-based lower-order surface panel method is developed to calculate the flow around a three-dimensional hydrofoil with an attached sheet cavity the leading edge. A Dirichlet type dynamic boundary condition on the cavity surface and a Neumann boundary condition on the wetted surface are enforced.
Kuiper G
exaly   +2 more sources

Free surface flows induced by re-entrant jet with surface tension effect in a channel

Quarterly of Applied Mathematics
In this paper, we study the two-dimensional free surface cavity flows past a wedge in a channel. A re-entrant jet cavity termination model is introduced. Gravity is neglected, but surface tension is included in the dynamic boundary condition.
exaly   +3 more sources

Dynamic Performance of a 3D Re-entrant Structure

open access: yesMechanics of Materials, 2020
In this study, the mechanical performance of a three-dimensional (3D) re-entrant structure subjected to dynamic compression was experimentally investigated using a high-speed Instron machine. Quasi-static tests were conducted for comparison.
Krishna Prasath Logakannan   +2 more
exaly   +2 more sources

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