Journal ArticleDOI
Combined experimental observation and numerical simulation of the cloud cavitation with U-type flow structures on hydrofoils
TLDR
In this paper, a series of experimental observations around hydrofoils are carried out in the cavitation tunnel of the China Ship Scientific Research Center (CSSRC) to illustrate the spatial-temporal evolution of the cloud cavity in detail.About:
This article is published in International Journal of Multiphase Flow.The article was published on 2016-03-01. It has received 97 citations till now. The article focuses on the topics: Cavitation & Adverse pressure gradient.read more
Citations
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Journal ArticleDOI
A review of cavitation in hydraulic machinery
TL;DR: In this paper, the authors summarized the recent progress for the cavitation study in the hydraulic machinery including turbo-pumps, hydro turbines, etc., and identified the 1-D analysis method, which is identified to be very useful for engineering applications regarding the cavitating flows in inducers, turbine draft tubes, etc.
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Large eddy simulation and Euler–Lagrangian coupling investigation of the transient cavitating turbulent flow around a twisted hydrofoil
TL;DR: In this paper, a 3D Lagrangian Coherent Structures (LCS) was used to analyze the dynamics of cavitation-vortex interactions in the Delft twisted hydrofoil.
Journal ArticleDOI
Large eddy simulation of turbulent attached cavitating flow with special emphasis on large scale structures of the hydrofoil wake and turbulence-cavitation interactions
TL;DR: In this article, the turbulent attached cavitating flow around a Clark-Y hydrofoil is investigated by the large eddy simulation (LES) method coupled with a homogeneous cavitation model.
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Verification and validation of URANS simulations of the turbulent cavitating flow around the hydrofoil
TL;DR: In this paper, the authors investigated the feasibility of various Richardson extrapolation-based uncertainty estimators in the cavitating flow simulation, including the modified Factor of Safety (FS1), the Factor of safety (FS), and the Grid Convergence Index (GCI).
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The transient characteristics of cloud cavitating flow over a flexible hydrofoil
TL;DR: In this paper, the authors investigated the two-phase flow structure of cloud cavitation over a flexible hydrofoil with particular emphasis on cavitating flow-induced vibration and the cavity shedding dynamics via combined experimental and numerical studies.
References
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Journal ArticleDOI
Mechanism and Control of Cloud Cavitation
TL;DR: In this article, the authors investigated the generation mechanism of cloud cavitation on a hydrofoil section and found that the collapse of a sheet cavity is triggered by a re-entrant jet rushing from the trailing edge to the leading edge of the sheet cavity, and consequently, the sheet cav is shed in the vicinity of its leading edge and thrown downstream as a cluster of bubbles called cloud cavity.
Journal ArticleDOI
Flow structure and modeling issues in the closure region of attached cavitation
Shridhar Gopalan,Joseph Katz +1 more
TL;DR: In this article, the authors used particle image velocimetry (PIV) and high-speed photography to measure the flow structure at the closure region and downstream of sheet cavitation.
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Numerical simulation of three dimensional cavitation shedding dynamics with special emphasis on cavitation–vortex interaction
TL;DR: In this article, the structure of the cavitating flow around a twisted hydrofoil was investigated numerically using the mass transfer cavitation model and the modified RNG k-e model with a local density correction for turbulent eddy viscosity.
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Dynamics of attached turbulent cavitating flows
TL;DR: In this paper, the authors reviewed the stationary and non-stationary characteristics of attached, turbulent cavitating flows around solid objects, including incipient cavitation with traveling bubbles, sheet cavitation, cloud cavitation and supercavitation.