Large Eddy Simulation and theoretical investigations of the transient cavitating vortical flow structure around a NACA66 hydrofoil
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In this paper, the cavitating flow around a NACA66 hydrofoil is studied numerically with particular emphasis on understanding the cavitation structures and the shedding dynamics, including the cavity growth, break-off and collapse downstream.About:
This article is published in International Journal of Multiphase Flow.The article was published on 2015-01-01 and is currently open access. It has received 335 citations till now. The article focuses on the topics: Cavitation & Large eddy simulation.read more
Citations
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Journal ArticleDOI
Identification of 1-D cavitation model parameters by means of computational fluid dynamics
Jean Decaix,Sébastien Alligné,Andres Müller,Christophe Nicolet,Cécile Münch,François Avellan +5 more
TL;DR: In this paper, a 3D cavitation vortex rope develops in hydraulically powered hydropower turbines that acts as an internal sour seed for stabilizing electrical power, which is a key energy conversion technology.
Journal ArticleDOI
Vortex identification in turbulent flows past plates using the Lagrangian method
Bashar Attiya,I-Han Liu,Muhannad Altimemy,Muhannad Altimemy,Cosan Daskiran,Alparslan Oztekin +5 more
TL;DR: In this paper, the velocity field obtained by high-fidelity large eddy simulations is used to identify vortex identifications in turbulent flows past arrays of tandem plates, using a velocity field derived from Lagrangian coherent structures.
Journal ArticleDOI
Aggressive ability improvement of self-resonating cavitating jets with double-hole nozzle
Boshen Liu,Yang Gao,Fei Ma +2 more
TL;DR: In this paper , the aggressive ability of cavitating jets generated by a double-hole nozzle was investigated under an ambient pressure condition to improve the erosion efficiency for potential applications such as underground drilling.
Journal ArticleDOI
Numerical analysis on the cavitation characteristics of a pump with an inducer in non-uniform inflow
TL;DR: In this article , the authors investigated the mechanism of the cavitation characteristics influenced by the non-uniform inflow and found that the nonuniformity induced by the annulus inlet casing mainly influences the development of the secondary flow close to the hub, and the negative induced streamwise vorticity would gradually decay along the radial direction.
Book ChapterDOI
Study and Detection of Cavitation in Centrifugal Pumps
TL;DR: In this article, an important hydrodynamic excitation mechanism that can affect the smooth and efficient operation of a centrifugal pump is cavitation, which may be created in the low static pressure zone of the impeller.
References
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Subgrid-scale stress modelling based on the square of the velocity gradient tensor
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TL;DR: In this paper, a subgrid scale model is proposed for large eddy simulations in complex geometries, which accounts for the effects of both the strain and the rotation rate of the smallest resolved turbulent fluctuations.
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The design and application of upwind schemes on unstructured meshes
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