Results 31 to 40 of about 601,506 (352)

Inhomogeneous Gradient Poiseuille Flows of a Vertically Swirled Fluid [PDF]

open access: yesJournal of Applied and Computational Mechanics
An exact solution is proposed for describing the steady-state and unsteady gradient Poiseuille shear flow of a viscous incompressible fluid in a horizontal infinite layer.
Natalya Burmasheva   +3 more
doaj   +1 more source

Flow Vortex‐Associated Downward Field‐Aligned Current Retreating in the Near‐Earth Plasma Sheet

open access: yesEarth and Space Science, 2020
The formation of field‐aligned currents (FACs) of a substorm current wedge is a key element of substorms. Conjunctive observations of a downward FAC during a substorm on 20 December 2007 were made in space by THEMIS satellites and on the ground by ...
Huanzhi Yuan   +4 more
doaj   +1 more source

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 annihilation in the ordering kinetics of the O(2) model

open access: yes, 1996
The vortex-vortex and vortex-antivortex correlation functions are determined for the two-dimensional O(2) model undergoing phase ordering. We find reasonably good agreement with simulation results for the vortex-vortex correlation function where there is
A. D. Rutenberg   +22 more
core   +1 more source

Influence of the flow field structure formed downstream of the human vocal cord model on the sound generated

open access: yesNihon Kikai Gakkai ronbunshu, 2020
Loss of oral communication after total laryngectomy reduces the quality of life of the patient. Understanding the basic sound generation mechanisms in the larynx is necessary for the development of voice reconstruction.
Seiya KOSAKO   +2 more
doaj   +1 more source

Motion of vortices in inhomogeneous Bose-Einstein condensates

open access: yes, 2018
We derive a general and exact equation of motion for a quantised vortex in an inhomogeneous two-dimensional Bose-Einstein condensate. This equation expresses the velocity of a vortex as a sum of local ambient density and phase gradients in the vicinity ...
Groszek, Andrew J.   +3 more
core   +1 more source

Delay of vortex ring pinchoff by an imposed bulk counterflow [PDF]

open access: yes, 2004
The Kelvin–Benjamin variational principle has been previously used to predict that vortex ring pinchoff can be delayed if the energy of the leading vortex ring is decreased during formation and/or the energy delivered by the vortex generator is increased.
Dabiri, John O., Gharib, Morteza
core   +1 more source

Viscosity and Vortex Formation in a Liquid Placed in A Rotating Cylindrical Vessel

open access: yesEast European Journal of Physics, 2020
The free fall of steel balls of different diameters in viscous liquids placed in a cylindrical vessel at rest or rotating at a constant rate as well as the vortex generation in a liquid rotating in a cylindrical vessel were experimentally studied.
Oksana L. Andrieieva   +4 more
doaj   +1 more source

Paramagnetic Meissner effect in ZrB12 single crystal with non-monotonic vortex-vortex interactions

open access: yes, 2017
The magnetic response related to paramagnetic Meissner effect (PME) is studied in a high quality single crystal ZrB12 with non-monotonic vortex-vortex interactions.
Filipov, Volodimir B.   +6 more
core   +1 more source

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