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Vortex ring state of a shrouded rotor: an experimental survey
AbstractThe vortex ring state (VRS) is a flow condition typical of rotors operating in axial descent flight which may lead to large unpredictable...
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Experimental Investigation of a Swirl Toroidal Trapped Vortex Miniature Combustor
A novel combustor that benefited from the swirl flow movement via tangential injection of air/fuel is presented in this study. This combustor was...
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Instability
The first instability mechanism is applied to the plane parallel channel flow. We establish the well known Orr-Sommerfeld equation which is solved by...
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Application and Stability of Batchelor Vortex Flow
Swirl flow is very common in nature and engineering. Swirl flow is composed of forced vortexForced vortex and free vortexFree vortex. According to...
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Effects of wavelength on vortex structure and turbulence kinetic energy transfer of flow over undulated cylinders
AbstractPassive flow control is commonly used on bluff bodies for drag and oscillating lift reduction across a range of engineering applications....
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Vortex-induced sound prediction of slat noise from time-resolved particle image velocimetry data
A data-driven method for predicting the vortex-induced sound from time-resolved velocimetry data is presented and applied to the sound generated by...
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Instability of the Bow Shock Wave and Flow Due to the Curvature of the Flow of a Chemically Reactive Gas
The authors have presented experimental data and theoretical investigations of turbulence induced by the chemical processes in the compression zone...
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Vorticity and Vortex Kinematics
The concepts Vortexof vorticity and circulation are introduced. The three-dimensional governing equation for the vorticity is obtained. The...
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Numerical analysis of vortex formation and particle dispersion in a supersonic compressible particle-laden mixing layer
In the study, the quasi 2D-direct numerical simulations (DNS) approach of a supersonic mixing layer of hydrogen–nitrogen flow (upper high-speed) and...
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Review of vortex methods for rotor aerodynamics and wake dynamics
Electric vertical take-off and landing (eVTOL) aircraft with multiple lifting rotors or prop-rotors have received significant attention in recent...
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Instability of wall jet produced by two-dimensional inclined jet
This paper focuses on a two-dimensional jet that im**es on a slo** wall surface. It investigates the vibration behavior and wall jet development...
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Analytical Analysis of Nonlinear Vortex-Induced Vibration of Pipes Conveying Fluid
In this paper, the vortex-induced vibrations of a long flexible pipe conveying steady fluid are investigated via a two-mode discretization of the...
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Effect of shell mold thickness and insulating wool pattern on internal porosity in investment casting of vortex flow meter
Investment casting (IC) with different insulating wool pattern and shell mold thickness is investigated for a geometrically complex vortex flow meter...
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An experimental investigation of transient cavitation control on a hydrofoil using hemispherical vortex generators
Unsteady cavitation causes noise, damage, and performance decline in the marine engineering and fluid machinery systems. Therefore, finding a method...
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Power Analysis and Experimental Study of Vortex-Excited Vibrating Ocean Current Energy Generation Based on a Cylindrical Permanent Magnet Linear Motor
In order to solve the problem of large mechanical loss and low energy conversion efficiency of traditional rotary motors in the vortex vibration...
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Experimental investigation of a rotor blade tip vortex pair
This paper presents the results of an experimental study of two closely spaced vortices generated by a rotating blade with a modified tip geometry....
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Vortex-induced energy loss of a mixed-flow waterjet pump under different operating conditions
Mixed-flow waterjet pumps (M-FWPs) are core units of high-speed ship power propulsion. When operated under non-optimal operating conditions, the...
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Hypersonic boundary-layer instability characterization and transition downstream of distributed roughness
The ablation of thermal protection systems in hypersonic vehicles would generate randomly distributed surface roughness, which prominently influences...
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Experimental Study on Vortex-Induced Vibration of Rough Risers with Coupling Interference Effect Under Side-by-Side Arrangement
A vortex-induced vibration (VIV) experiment of rough risers with coupling interference effect under a side-by-side arrangement was carried out in a...
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A generalized van der Pol nonlinear model of vortex-induced vibrations of bridge decks with multistability
The mathematical model of vortex-induced vibrations (VIV) on long-span bridges is important to predict nonlinear structural responses. Such models...
