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Parametric analysis of a phenomenological model for vortex-induced motions of monocolumn platforms
(Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM, 2011)
Phenomenological models are an important branch in VIV (Vortex-Induced Vibrations) and in VIM (Vortex-Induced Motions) studies to complement the results achieved via CFD (Computational Fluid Dynamics), as the latter tool ...
Experimental comparative study on vortex-induced motion (VIM) of a monocolumn platform
(ASME-AMER SOC MECHANICAL ENGNEW YORK, 2012)
An analysis methodology is presented as well as a comparison of results obtained from vortex-induced motion (VIM) model tests of the MonoGoM platform, a monocolumn floating unit designed for the Gulf of Mexico. The choice ...
Experimental study on vortex-induced vibration of floating circular cylinders with low aspect Ratio
(ASMESan Francisco, 2014-06-08)
Experiments regarding vortex-induced vibration on floating circular cylinders with low aspect ratio were carried out in a recirculation water channel. The floating circular cylinders were elastic supported by a set of ...
A singular vorticity wave packet within a rapidly rotating vortex: spiralling versus oscillating motions
(2019)
This paper considers a free vorticity wave packet propagating within a rapidly rotating vortex in the quasi-steady regime, a long time after the wave packet strongly and unsteadily interacted with the vortex. We study a ...
Regimes of near-wall vortex dynamics in potential flow through gaps
(2008)
A two-dimensional problem of the motion of a single vortex near an infinite straight wall with singular gaps is solved both analytically, using a point-vortex approach, and numerically based on the method of contour surgery ...
Regimes of near-wall vortex dynamics in potential flow through gaps
(2008)
A two-dimensional problem of the motion of a single vortex near an infinite straight wall with singular gaps is solved both analytically, using a point-vortex approach, and numerically based on the method of contour surgery ...
Analysis Methodology for Vortex-Induced Motion (VIM) of a Monocolumn Platform Applying the Hilbert-Huang Transform Method
(ASME-AMER SOC MECHANICAL ENGNEW YORK, 2012)
Vortex-induced motion (VIM) is a highly nonlinear dynamic phenomenon. Usual spectral analysis methods, using the Fourier transform, rely on the hypotheses of linear and stationary dynamics. A method to treat nonstationary ...
Vortex-antivortex annihilation in mesoscopic superconductors with a central pinning center
(Elsevier B.V., 2014-08-15)
In this work we solved the time-dependent Ginzburg-Landau equations, TDGL, to simulate two superconducting systems with different lateral sizes and with an antidot inserted in the center. Then, by cycling the external ...
Small amplitude oscillations of sine-gordon vortex states in planar magnets in three dimensions
(Brazilian Journal of Physics, 2019)