Results 31 to 40 of about 538,069 (301)

Numerical Simulation of Gas-liquid Two-phase Flow in Emergency Rescue Drainage Pump Based on MUSIG Model [PDF]

open access: yesJournal of Applied Fluid Mechanics
To investigate the gas-liquid two-phase flow characteristics in an emergency rescue drainage pump, the MUSIG model was adopted to analyze the effect of the gas phase on the internal flow characteristics of the pump.
W. Cao, X. Yang, H. Wang, X. Leng
doaj   +1 more source

Guiding-center dynamics of vortex dipoles in Bose-Einstein condensates

open access: yes, 2011
A quantized vortex dipole is the simplest vortex molecule, comprising two counter-circulating vortex lines in a superfluid. Although vortex dipoles are endemic in two-dimensional superfluids, the precise details of their dynamics have remained largely ...
C. J. Pethick   +13 more
core   +1 more source

Vortex Splitting in Subcritical Nonlinear Schrodinger Equation

open access: yes, 2008
Vortices and axisymmetric vortex rings are considered in the framework of the subcritical nonlinear Schrodinger equations. The higher order nonlinearity present in such systems models many-body interactions in superfluid systems and allows one to study ...
Berloff N G   +5 more
core   +1 more source

Role of gradients and vortexes on suitable location of discrete heat sources on a sinusoidal-wall microchannel

open access: yesEngineering Applications of Computational Fluid Mechanics, 2021
The idea of using the compact device with higher heat transfer potential has encouraged researchers to use microchannels. Creating sinusoidal walls is a technique leading to better effectiveness and smaller size.
Liang Cheng   +8 more
doaj   +1 more source

Influencia de la geometría de entrada en tomas sumergidas sobre la sumersión crítica para la formación de vórtices que arrastran aire

open access: yesRibagua, 2023
RESUMENSe realizó un estudio experimental para estudiar la influencia de la geometría de una toma horizontal sumergida en la formación de vórtices de superficie libre que arrastran aire.
A. Martín Rincón, Julio M. Kuroiwa
doaj   +1 more source

Single- and double-vortex vector solitons in self-focusing nonlinear media

open access: yes, 2004
We study two-component spatial optical solitons carrying an angular momentum and propagating in a self-focusing saturable nonlinear medium. When one of the components is small, such vector solitons can be viewed as a self-trapped vortex beam that guides ...
Kivshar, Yuri S., Salgueiro, Jose R.
core   +1 more source

Vortex holography [PDF]

open access: yesNuclear Physics B, 2002
We show that the Abelian Higgs field equations in the four dimensional anti de Sitter spacetime have a vortex line solution. This solution, which has cylindrical symmetry in AdS$_4$, is a generalization of the flat spacetime Nielsen-Olesen string. We show that the vortex induces a deficit angle in the AdS$_4$ spacetime that is proportional to its mass ...
Dehghani, M. H.   +2 more
openaire   +3 more sources

An Investigation on the Vortex Effect of a CALM Buoy under Water Waves Using Computational Fluid Dynamics (CFD)

open access: yesInventions, 2022
Floating offshore structures (FOS) must be designed to be stable, to float, and to be able to support other structures for which they were designed. These FOS are needed for different transfer operations in oil terminals.
Chiemela Victor Amaechi, Jianqiao Ye
doaj   +1 more source

Study on the Sensitivity of the Streamwise Location of MVG on SWBLI in MVG-Based Supersonic Flow Control

open access: yesFluids, 2022
Micro vortex generator (MVG) is a currently facile, robust, and feasible device for supersonic and hypersonic flow control. The purpose of this study is to investigate the impact on SWBLI from the streamwise location of MVG.
Yonghua Yan   +4 more
doaj   +1 more source

Vortex formation and instability in the left ventricle

open access: yes, 2011
We study the formation of the mitral vortex ring during early diastolic filling in a patient-specific left ventricle (LV) using direct numerical simulation. The geometry of the left ventricle is reconstructed from Magnetic Resonance Imaging (MRI) data of
Coffey, Dane   +3 more
core   +1 more source

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