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Evolution of vortex structure around a wall-mounted rough hemisphere
In this paper, the large eddy simulation (LES) method is used to calculate Reynolds numbers the range in the range of 3 000–30 000 (based on the...
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Influence of Dispersed Particles on Structure of a Vortex Ring and Its Propagation
AbstractAn approach to modelling the unsteady axisymmetric vortex flows of a gas-dispersed mixture with an incompressible carrier phase is developed....
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Vortex analysis of water flow through gates by different vortex identification methods
The pre-gate suction vortex, gate-bottom-edge transverse vortex, gate-slot vertical vortex, and downstream-of-gate return vortex are important...
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Design Improvement of the Small-Scale Vortex-Induced Bladeless Wind Turbine Considering the Characteristic Length of the Oscillating Structure
In this paper, a modification of the mast, which is the main part of a vortex-induced wind generator was considered in order to improve the...
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Characterization of vortex structures with self-excited oscillations based on Liutex-Omega vortex identification method
The self-excited oscillation effect produces a continuous periodic pulsation without an external excitation source. It is widely used in fluid heat...
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Coherent structure-turbulence interaction studied via a vortex column embedded in fine-scale turbulence
The coupling of large-scale coherent structures (CSs) with fine-scale turbulence and its possible relevance to cascade are explored via numerical...
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Study on the development law of self-oscillating pulsed SC-CO2 jet vortex structure and its effect on frequency
The self-oscillating pulsed supercritical (SC)-CO 2 jet technology has higher pulse pressure and the resonant rock-breaking effect, which can improve...
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Formation of free-surface vortex and vortex suppression by rotating stopper-rod at end of tundish casting
A rotating stopper-rod technique was proposed to suppress the formation of free-surface vortex in the tundish. The large eddy simulation model...
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Vortex Bladeless Turbines with Wings
Vortex bladeless turbine is a non-conventional turbine that does not use any rotor blades to capture energy from flowing fluid. The device captures...
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Vortex identification based on the Liutex method and its effect on fish passage upstream
Fishway research is important for mitigating the fragmentation of river habitats caused by hydraulic projects. The vertical slit fishway is a broadly...
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Large-scale flow structure and energy separation in a Ranque–Hilsch vortex tube with particle image velocimetry measurement: an experimental study
The flow structure of the vortex tube is considered to be the key to understanding the energy separation mechanism, and the unsteady vortex breakdown...
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Vortex-Beam Detection
Orbital angular momentum (OAM) multiplexing increases the communication bandwidth and improves the spectral efficiency. The vortex light obtained by...
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Construction of the vortex-surface field from tomographic particle image velocimetry data of flow past a vortex generator
We extend the vortex-surface field (VSF), a Lagrangian-based flow diagnostic method, to experimental data of the tomographic particle image...
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Bio-inspired Filter Design Based on Vortex Control Mechanism of Parallel Groove Structure
Solid–liquid separation is widely used in daily life and practical engineering. Traditional industrial filters are prone to clogging, but this rarely...
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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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Force Effect of a Vortex Ring on a Flat Obstacle
Numerical modeling of the interaction of a vortex ring with a normally located flat obstacle was performed based on the nonstationary Navier–Stokes...
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Vortex Ring Formation Following Shock Wave Diffraction in Low-Pressure Environments
Compressible vortex rings have been widely investigated for decades under ambient atmospheric conditions, and understanding this transient phenomenon...
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High-speed volumetric particle tracking measurements of unstable helical vortex pairs
We present results from an experimental study investigating pairs of helical vortices generated by a one-bladed rotor in hovering conditions....
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Effects of cavitation on vortex-induced vibration of a flexible circular cylinder simulated by fluid-structure interaction method
To investigate the effects of the cavitation on the vortex-induced vibration, the flow and the vibration characteristics of a flexible circular...
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Researching Influence of Vortex Generators on Aircraft Aerodynamic Characteristics
This paper deals with researching the influence of vortex generators on the aircraft’s aerodynamic characteristics. The principle of operation of...