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Análise numérica do fenômeno Vortex Breakdown em escoamentos rotativosNumerical analysis of Vortex Breakdown phenomenon in rotating flows
(Universidade Federal de UberlândiaBRPrograma de Pós-graduação em Engenharia MecânicaEngenhariasUFU, 2016)
Stability and evolution of uniform-vorticity dipoles
(Journal of Fluid Mechanics, 2011)
Using an iterative algorithm, a family of stationary two-dimensional vortical dipoles is constructed, including translational (symmetric and asymmetric about the translation axis) and orbital (i.e. moving in circles) ...
Compensation between Resolved and Unresolved Wave Drag in the Stratospheric Final Warmings of the Southern Hemisphere
(American Meteorological Society, 2015-11)
The role of planetary wave drag and gravity wave drag in the breakdown of the stratospheric polar vortex and its associated final warming in the Southern hemisphere is examined using MERRA reanalyses, and a middle atmosphere ...
A numerical investigation of the aerodynamics of a furnace with a movable block burner
(Brazilian Soc Chemical EngSao PauloBrasil, 2007)
Breaking of chiral symmetry in vortex domain wall propagation in ferromagnetic nanotubes
(Elsevier, 2013)
This paper is focused to the field-induced dynamics of vortex-like domain walls (VDWs) in magnetic nanotubes (MNTs). Based on a dissipative Lagrangian formalism that fully includes damping as well as exchange and dipole–dipole ...
Memory effects in superfluid vortex dynamics
(Springer/Plenum Publishers, 2004-11)
The dissipative dynamics of a vortex line in a superfluid is investigated within the frame of a non-Markovian quantal Brownian motion model. Our starting point is a recently proposed interaction Hamiltonian between the ...
The Role of Gravity Wave Drag Optimization in the Splitting of the Antarctic Vortex in the 2002 Sudden Stratospheric Warming
(American Geophysical Union, 2018-07)
The impact of gravity wave drag on the Antarctic sudden stratospheric warming (SSW) in 2002 is examined through a mechanistic middle atmosphere model combined with a variational data assimilation system. Significant ...
Estimation of gravity wave parameters to alleviate the delay in the Antarctic vortex breakup in general circulation models
(John Wiley & Sons Ltd, 2017-05-19)
The impact of optimal parameters in a non-orographic gravity wave drag parameterization on the middle atmosphere circulation of the Southern hemisphere is examined. Optimal parameters are estimated using a data assimilation ...
Storyline description of Southern Hemisphere midlatitude circulation and precipitation response to greenhouse gas forcing
(Springer, 2020-05)
As evidence of climate change strengthens, knowledge of its regional implications becomes an urgent need for decision making. Current understanding of regional precipitation changes is substantially limited by our understanding ...
Ultrafast domain wall propagation due to the interfacial Dzyaloshinskii-Moriya interaction
(IOP Publishing, 2020)
It is shown that the interplay between curvature and interfacial Dzyalonshinsky-Moriya interaction (DMI) is a pathway to ultrafast domain wall (DW) dynamics in ferromagnetic nanotubes. In this work, we theoretically study ...