Articles with "tip vortex" as a keyword



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Nucleation and cavitation number effects on tip vortex cavitation dynamics and noise

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Published in 2021 at "Experiments in Fluids"

DOI: 10.1007/s00348-021-03308-2

Abstract: The spatial and acoustic characteristics of tip vortex cavitation (TVC) inception were measured in a cavitation tunnel. Numerous cavitation events were recorded to reveal the influence of different nuclei populations and cavitation numbers on nuclei… read more here.

Keywords: cavitation; tip vortex; vortex cavitation; inception ... See more keywords

Numerical simulation of Vortex–Rudder interactions behind the propeller

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Published in 2019 at "Ocean Engineering"

DOI: 10.1016/j.oceaneng.2019.106446

Abstract: Abstract In this study, the evolution of the propeller tip vortex and its effect on the rudder surface pressure fluctuation was investigated using large eddy simulation. In this simulation, the flow domain was discretized using… read more here.

Keywords: numerical simulation; vortex; tip vortex; propeller ... See more keywords

Large Eddy Simulations of cavitating tip vortex flows

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Published in 2020 at "Ocean Engineering"

DOI: 10.1016/j.oceaneng.2019.106703

Abstract: In the current study, tip vortex flows are numerically studied by employing Large Eddy Simulation. Wet flow, cavitation inception, and cavitating tip vortex simulations are carried out on an elliptical foil. The mesh resolution requirements… read more here.

Keywords: large eddy; tip vortex; vortex; vortex flows ... See more keywords

Impact of skew on propeller tip vortex cavitation

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Published in 2021 at "Ocean Engineering"

DOI: 10.1016/j.oceaneng.2020.108479

Abstract: Abstract To analyze the effect of skew on propeller cavitation performance, single-blade propellers with different amounts of skew are investigated. Simulations are preformed using the Large Eddy Simulation (LES) and the Schnerr–Sauer cavitation model. The… read more here.

Keywords: tip vortex; cavitation; vortex cavitation; skew propeller ... See more keywords

Experimental measurement of tip vortex flow field with/without cavitation in an elliptic hydrofoil

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Published in 2017 at "Journal of Hydrodynamics"

DOI: 10.1016/s1001-6058(16)60808-9

Abstract: In this paper, recent measurements of tip vortex flow with and without cavitation carried out in Cavitation Mechanism Tunnel of China Ship Scientific Research Center (CSSRC) are presented. The elliptic hydrofoil with section NACA 662-415… read more here.

Keywords: cavitation; vortex; tip vortex; vortex flow ... See more keywords

Streamwise ram effect and tip vortex enhance the lift of a butterfly-inspired flapping wing

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Published in 2025 at "Journal of Fluid Mechanics"

DOI: 10.1017/jfm.2024.1199

Abstract: Abstract Although both butterflies and dragonflies are four-winged insects, their wing geometries and kinematics differ significantly. Butterflies have a much narrower gap between their forewing and hindwing than dragonflies. While previous research has extensively investigated… read more here.

Keywords: lift; tip vortex; streamwise ram; forewing hindwing ... See more keywords

Mitigating tip vortex cavitation by a flexible trailing thread

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Published in 2019 at "Physics of Fluids"

DOI: 10.1063/1.5126376

Abstract: Tip Vortex Cavitation (TVC) is a major issue in design and operation of axial hydraulic machines. We investigate the capacity of a flexible trailing thread in alleviating TVC by analyzing the flow-induced motion. For this… read more here.

Keywords: motion; tip vortex; vortex; vortex cavitation ... See more keywords

Experimental investigation of tip vortex cavitation noise under static and dynamic states

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Published in 2024 at "Physics of Fluids"

DOI: 10.1063/5.0217994

Abstract: Tip vortex cavitation (TVC) stands as a primary source of underwater radiated noise, garnering significant attention in the relevant fields due to its early manifestation in propellers and broad frequency spectrum. Although some meaningful experimental… read more here.

Keywords: cavitation; tvc noise; tip vortex; static dynamic ... See more keywords
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Three-dimensional evolution and turbulent kinetic energy transport of tip vortex from an elliptical hydrofoil

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Published in 2025 at "Physics of Fluids"

DOI: 10.1063/5.0248934

Abstract: A non-cavitating tip vortex generated by an elliptical hydrofoil is investigated utilizing tomographic particle image velocimetry (TPIV). Focus is placed on its three-dimensional evolution over a relatively large streamwise region, as well as the transport… read more here.

Keywords: evolution; tip; tip vortex; tke ... See more keywords

Suppressing tip vortex cavitation through passive deformation of a hydrofoil. I. Bending

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Published in 2025 at "Physics of Fluids"

DOI: 10.1063/5.0277913

Abstract: Tip vortex cavitation (TVC) remains a persistent issue in marine propulsion and lifting surfaces, contributing to the underwater radiated noise of marine vessels. We investigate a novel passive strategy for TVC mitigation through localized chord-normal… read more here.

Keywords: cavitation; tip vortex; side; hydrofoil ... See more keywords

Effects of crosswinds and tip configurations on the initial phase of wingtip vortex evolution

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Published in 2022 at "Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering"

DOI: 10.1177/09544100221123868

Abstract: Wingtip vortex is the initial phase of aircraft wake flow that jeopardizes flight safety. Previous studies have focused on the effect of incidence angle on tip vortex flow; thus, investigations on tip vortex in the… read more here.

Keywords: tip vortex; wingtip; square wingtip; initial phase ... See more keywords