Results 21 to 30 of about 2,268 (172)

Kármán vortex street in a two-component Bose–Einstein condensate

open access: yesNew Journal of Physics, 2019
Vortex shedding from a moving obstacle potential in a two-component Bose–Einstein condensate is investigated numerically. For a miscible two-component condensate composed of ^23 Na and ^87 Rb atoms, in the wake of obstacle, the Kármán vortex street is ...
Xiao-Lin Li   +6 more
doaj   +1 more source

Numerical simulation of single aluminum droplet evaporation based on VOF method

open access: yesCase Studies in Thermal Engineering, 2022
In order to explore the law of single aluminum droplet evaporation process in argon, based on the VOF method, this paper carried out a corresponding two-dimensional transient multiphase flow numerical simulation.
Jia-hao Wang   +5 more
doaj   +1 more source

Spatio-temporal spectral analysis of a forced cylinder wake [PDF]

open access: yes, 2011
The wake of a circular cylinder performing rotary oscillations is studied using hydrodynamic tunnel experiments at $Re=100$. Two-dimensional particle image velocimetry on the mid-plane perpendicular to the axis of cylinder is used to characterize the ...
D'Adamo, Juan   +2 more
core   +2 more sources

Three dimensionality in the wake of the flow around a circular cylinder at Reynolds number 5000 [PDF]

open access: yes, 2017
The turbulent flow around a circular cylinder has been investigated at Re=5000Re=5000 using direct numerical simulations. Low frequency behavior, vortex undulation, vortex splitting, vortex dislocations and three dimensional flow within the wake were ...
Aljure Osorio, David E.   +3 more
core   +2 more sources

Numerical Study of the Passive Motion of Airfoils in Porous Media [PDF]

open access: yesJournal of Applied Fluid Mechanics
This study proposes adding a porous medium layer to the leading edge of a rigid airfoil and investigates the influence of various porous medium properties on the passive propulsion performance of the airfoil in a Kármán vortex street, using numerical ...
J. Tang   +4 more
doaj   +1 more source

Vortex patterns generated by a heaving flexible plate [PDF]

open access: yes, 2014
International audienceWe present dye visualizations of the wake behind a flexible plate flow when its leading edge is forced into harmonic heave motion.
Eloy, Christophe   +2 more
core   +3 more sources

Comparison of a grid-based CFD method and vortex dynamics predictions of low Reynolds number cylinder flow [PDF]

open access: yes, 2006
Computational fluid dynamics models range from the finite difference type grid-based method to the Lagrangian style vortex cloud simulation technique for solving the Navier-Stokes equations.
Baranyi, László, Lewis, R. I.
core   +1 more source

Flow Characteristics Around Step-Up Street Canyons with Various Building Aspect Ratios [PDF]

open access: yes, 2020
We investigate the flow characteristics around step-up street canyons with various building aspect ratios (ratio of along-canyon building length to street-canyon width, and upwind building height to downwind building height) using a computational fluid ...
Choi, Wonsik   +5 more
core   +1 more source

A non-linear observer for unsteady three-dimensional flows [PDF]

open access: yes, 2007
A method is proposed to estimate the velocity field of an unsteady flow using a limited number of flow measurements. The method is based on a non-linear low-dimensional model of the flow and on expanding the velocity field in terms of empirical basis ...
A. Iollo   +28 more
core   +6 more sources

Effect of NACA0012 Airfoil Pitching Oscillation on Flow Past a Cylinder

open access: yesEnergies, 2021
The flow past a cylinder is a classical problem in flow physics. In a certain range of Reynolds number, there will be Karman vortex street phenomenon in the wake of a cylinder, which will greatly increase the pressure drag of the cylinder. By controlling
Rong Han   +3 more
doaj   +1 more source

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