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The physics of vortex-ring evolution in a stratified and shearing environment
Journal of Fluid Mechanics, 1978A semi-analytical numerical study was performed to simulate the development of a vortex ring in a stratified and/or shearing environment. Practical applications of results of this study can be found in turbulence modelling and in studies of plumes and wakes. The objective is to follow exactly the evolution of a vortex ring so that the three-dimensional
J. Meng
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On nonlinear physics of shear Alfvén waves [PDF]
Physics of Plasmas, 2013 Shear Alfvén waves (SAW) are electromagnetic oscillations prevalent in laboratory and nature magnetized plasmas. Due to their anisotropic nature, it is well known that the linear wave propagation and dispersiveness of SAW are fundamentally affected by plasma nonuniformities and magnetic field geometries, such as the existence of continuous spectrum ...
Liu Chen, Fulvio Zonca
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Physical Modeling of the Effect of Shearing on the Concentration Profile in a Shear Cell
Journal of The Electrochemical Society, 1999The effect of the action of shearing a column of molten gallium (Ga) doped germanium (Ge) on the gallium concentration field in a shear cell segment was experimentally investigated using a physical model. A physical model is an experimental system that is different from the system of interest but connected by scaling relations.
David H. Matthiesen +2 more
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Nonlinear physics of shear Alfvén waves
AIP Conference Proceedings, 2014Shear Alfven waves (SAW) play fundamental roles in thermonuclear plasmas of fusion interest, since they are readily excited by energetic particles in the MeV range as well as by the thermal plasma components. Thus, understanding fluctuation induced transport in burning plasmas requires understanding nonlinear SAW physics.
Fulvio Zonca, Liu Chen
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The unification of disparate rheological measures in oscillatory shearing
The Physics of Fluids, 2019Oscillatory shearing is a popular method to understand transient nonlinear rheology. Various viscoelastic metrics have been used to analyze oscillatory rheology with different perspectives.
Florian Nettesheim, S. Rogers
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Physical Chemistry, Chemical Physics - PCCP, 2018
Friction reduction is more than ever a key point in saving natural resources and energy, and the question of how to achieve this concerns first and foremost every lubricated system.
Alejandro Porras-Vazquez +3 more
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Friction reduction is more than ever a key point in saving natural resources and energy, and the question of how to achieve this concerns first and foremost every lubricated system.
Alejandro Porras-Vazquez +3 more
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Nature, 2007
Cooled to temperatures just above absolute zero, solid helium starts to behave very oddly. But its 'supersolid' behaviour might just be the result of imperfections that change the bulk properties of the crystal.
Alan T. Dorsey, David A. Huse
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Cooled to temperatures just above absolute zero, solid helium starts to behave very oddly. But its 'supersolid' behaviour might just be the result of imperfections that change the bulk properties of the crystal.
Alan T. Dorsey, David A. Huse
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Physical gelation under shear for gelatin gels
Rheologica Acta, 1997Physical gelation is the process of crosslinking which reversibly transforms a solution of polymers into a gel. The crosslinks of the network have a physical origin (hydrogen bonding, Van der Waals forces... ) and therefore are sensitive to variations of temperature, pH, ionic content, etc. (non-permanent crosslinks).
Madeleine Djabourov, Walter de Carvalho
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Rheological manifestation of microstructural change of colloidal gel under oscillatory shear flow
The Physics of Fluids, 2020The rheological manifestation of intra-cycle microstructural change of a model colloidal gel under oscillatory shearing is studied with Brownian dynamics simulation and a fully quantitative sequence of physical process (SPP) technique.
Jun Dong Park, S. Rogers
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Fiber bundle models for stress release and energy bursts during granular shearing.
Physical review. E, Statistical, nonlinear, and soft matter physics, 2012Fiber bundle models (FBMs) offer a versatile framework for representing transitions from progressive to abrupt failure in disordered material. We report a FBM-based description of mechanical interactions and associated energy bursts during shear ...
Gernot Michlmayr, D. Or, D. Cohen
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