Measurements of aircraft wake vortices in ground proximity within an atmospheric boundary layer wind tunnel [PDF]
, 2010 The vortex wake characteristics of aircraft during landing and take-off are of interest in connection with both the safety of following aircraft penetrating the vortex and the dispersion of engine exhaust plumes. A series of measurements were carried out
Fonti, Elio
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Spatial distribution of rolled up Kelvin-Helmholtz vortices at Earth's dayside and flank magnetopause [PDF]
, 2012 The Kelvin-Helmholtz Instability (KHI) can drive waves at the magnetopause. These waves can grow to form rolled-up vortices and facilitate transfer of plasma into the magnetosphere.
Volwerk, M. +23 more
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Dynamics of vortices with magnetic impurities [PDF]
, 2017 We investigate the dynamics of BPS vortices in the presence of magnetic impurities taking the form of axially-symmetric localised lumps and delta-functions. We present numerical results for vortices on flat space, as well as exact results for vortices on
Muhamed, Abera Ayalew +5 more
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The shape of vortices in quasi-geostrophic turbulence [PDF]
, 2003 Partially supported by the UK EPSRC (Grant GR/N11711)The present work discusses the most commonly occurring shape of the coherent vortical structures in rapidly rotating stably stratified turbulence, under the quasi-geostrophic approximation. In decaying
Reinaud, Jean Noel +2 more
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The merger of vertically offset quasi-geostrophic vortices [PDF]
, 2002 We examine the critical merging distance between two equal-volume, equal-potential-vorticity quasi-geostrophic vortices. We focus on how this distance depends on the vertical offset between the two vortices, each having a unit mean height-to-width aspect
D. G. DRITSCHEL +3 more
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The motion of point vortices on closed surfaces [PDF]
, 2015 We develop a mathematical framework for the dynamics of a set of point vortices on a class of differentiable surfaces conformal to the unit sphere. When the sum of the vortex circulations is non-zero, a compensating uniform vorticity field is required to
Dritschel, David Gerard, Boatto, S
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The merger of two-dimensional radially stratified high-Froude-number vortices [PDF]
, 2007 We investigate the influence of density inhomogeneities on the merger of two corotating two-dimensional vortices at infinite Froude number. In this situation, buoyancy effects are negligible, yet density variations still affect the flow by pure inertial ...
Reinaud, Jean N. +2 more
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The critical merger distance between two co-rotating quasi-geostrophic vortices [PDF]
, 2005 This paper examines the critical merger or strong interaction distance between two equal-potential-vorticity quasi-geostrophic vortices. The interaction between the two vortices depends on five parameters: their volume ratio, their height-to-width aspect
Reinaud, Jean Noel +1 more
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Numerical investigation of vortices effect on the pressure drop and flow loss in a channel with planar gradual expansion [PDF]
مجله مدل سازی در مهندسی, 2017 The main object of current study is investigation of influence and role of symmetric and asymmetric vortices formation and number of them on the pressure drop and losses of flow in gradual expansions.
Mohammad Mohsen Shahmardan +2 more
doaj +1 more source
The Journal of Engineering, 2018 With the use of large eddy simulation (LES), the initial structure and mixing characteristics of both the subsonic and supersonic circular jets are studied, respectively.
Huanhao Zhang +3 more
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