Results 11 to 20 of about 4,674,421 (280)
Intake Ground Vortex Aerodynamics [PDF]
, 2008 When an aircraft is operating in static or near static conditions during taxiing or take-o a vortex can form between the ground and the intake. With engine diameters increasing, intakes are moving non-dimensionally closer to the ground and as a ...
Murphy, John
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Hölder estimate for the 3 point-vortex problem with alpha-models
Comptes Rendus. Mathématique, 2023 In this article we study quasi-geostrophic point-vortex systems in a general setting called alpha point-vortex. We study a particular case of vortex collapses called mono-scale collapses and this study gives the Hölder regularity for the $3$-vortex ...
Godard-Cadillac, Ludovic
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Mathematics, 2020 The three-layer version of the contour dynamics/surgery method is used to study the interaction mechanisms of a large-scale surface vortex with a smaller vortex/vortices of the middle layer (prototypes of intrathermocline vortices in the ocean) belonging
Mikhail A. Sokolovskiy +2 more
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A Parametric Study of Vane and Air-jet Vortex Generators [PDF]
, 1998 An experimental parametric sturdy of vane and air-jet vortex generators in a turbulent boundary layer has been carried out. Experiments were carried out in two facilities, one with a free-stream velocity of 20 m/s and a boundary layer thickness (6) of ...
Bray, Tim P.
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Convergence of the point vortex method for 2-D vortex sheet [PDF]
Mathematics of Computation, 2000 We give an elementary proof of the convergence of the point vortex method (PVM) to a classical weak solution for the two-dimensional incompressible Euler equations with initial vorticity being a finite Radon measure of distinguished sign and the initial velocity of locally bounded energy.
Jian-Guo Liu 0006, Zhouping Xin
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Investigation of Snow Deposition on the Railway Cuttings During the Snowdrift
Frontiers in Earth Science, 2022 This study confirmed a mixture multiphase model based on the Euler–Euler method to predict snow deposition in road cuttings. A scaled model experiment was conducted in the Mayitas region of Xinjiang to verify the numerical simulation accuracy, which ...
Wenyong Ma +6 more
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Entrapping of a vortex pair interacting with a fixed point vortex revisited. I. Point vortices [PDF]
Physics of Fluids, 2018 The problem of a pair of point vortices impinging on a fixed point vortex of arbitrary strengths [E. Ryzhov and K. Koshel, “Dynamics of a vortex pair interacting with a fixed point vortex,” Europhys. Lett. 102, 44004 (2013)] is revisited and investigated comprehensively.
Konstantin V. Koshel +3 more
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Wake structure and kinematics in the vortex ring state [PDF]
, 2009 High-resolution computational simulations of the vortical wake of a rotor operating both near to and within the vortex ring state have been conducted using Brown's vorticity transport model.
Brown, R.E., Ahlin, G.A.
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A highly adaptive three dimensional hybrid vortex method for inviscid flows and helically symmetric vortex equilibria [PDF]
, 2012 This thesis is concerned with three-dimensional vortex dynamics, in particular the modelling of vortex structures in an inviscid context. We are motivated by the open problem of regularity of the inviscid equations, i.e.
Lucas, Daniel
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Study of sheet flutter with large deformation in passage flow
Nihon Kikai Gakkai ronbunshu, 2016 This study reports about the numerical simulation of the sheet flutter in passage flow with large deformation and vortex shedding from trailing-edge. The equation of motion for flexible sheet has the Kelvin-Voigt-type material damping.
Akio YAMANO +3 more
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