Results 1 to 10 of about 380,610 (335)

Chiral drag force [PDF]

open access: greenJournal of High Energy Physics, 2015
We provide a holographic evaluation of novel contributions to the drag force acting on a heavy quark moving through strongly interacting plasma. The new contributions are chiral in that they act in opposite directions in plasmas containing an excess of ...
A Chamblin   +72 more
core   +8 more sources

Drag forces in classical fields [PDF]

open access: yesPhysical Review Letters, 2010
Inclusions, or defects, moving at constant velocity through free classical fields are shown to be subject to a drag force which depends on the field dynamics and the coupling of the inclusion to the field. The results are used to predict the drag exerted
Dean, David S., Demery, Vincent
core   +5 more sources

A Nnumerical Study of Drag force for Optimist Dinghy on Flat Water [PDF]

open access: diamondMATEC Web of Conferences, 2018
This study investigates numerically the drag force on the Optimal dinghy, which is one of the official classes of international sailing regatta. The drag force is affected by the forward and backward tilt angles and the heels angles. The results revealed
Lin Chien-Nan, Chou Jong-Ming
doaj   +2 more sources

The phonon drag force acting on a mobile crystal defect: full treatment of discreteness and non-linearity [PDF]

open access: green, 2015
Phonon scattering calculations predict the drag force acting on defects and dislocations rises linearly with temperature, in direct contradiction with molecular dynamics simulations that often finds the drag force to be independent of temperature.
Dudarev, S. L., Swinburne, T. D.
core   +2 more sources

Collective Ion Drag Force [PDF]

open access: greenPlasma Physics Reports, 2019
The forces acting on the ensemble of dust grains in a plasma flow are analyzed. It is shown that the nonreciprocal character of the forces results in the appearance of an ion drag force, which depends on the intergrain distance. Results of calculations for two grains and an unbounded hexagonal lattice are presented.
А. М. Игнатов
openaire   +2 more sources

Classical analogies for the force acting on an impurity in a Bose–Einstein condensate [PDF]

open access: yesNew Journal of Physics, 2020
We study the hydrodynamic forces acting on a small impurity moving in a two-dimensional Bose–Einstein condensate at non-zero temperature. The condensate is modelled by the damped-Gross Pitaevskii (dGPE) equation and the impurity by a Gaussian repulsive ...
Jonas Rønning   +4 more
doaj   +4 more sources

A Dynamic Model of Drag Force for Catalytic Micromotors Based on Navier–Stokes Equations [PDF]

open access: yesMicromachines, 2018
In past decades, considerable advances have been achieved in micro and nanomotors. Particular attention has been given to self-propelled catalytic micromotors, which have been widely used in cell separation, drug delivery, microsurgery, lithography and ...
Zhen Wang   +4 more
doaj   +2 more sources

That's a Drag: The Effects of Drag Forces

open access: yesUndergraduate Journal of Mathematical Modeling: One + Two, 2009
Drag is a force that opposes motion due to an object's shape, material, and speed. This project defined what drag force is, derived the governing equation for drag and listed some applications of drag forces.
Shane Maxemow
doaj   +4 more sources

Collisional Effects on Nonlinear Ion Drag Force for Small Grains [PDF]

open access: green, 2013
The ion drag force arising from plasma flow past an embedded spherical grain is calculated self-consistently and non-linearly using particle in cell codes, accounting for ion-neutral collisions.
Al'pert Y. L.   +2 more
core   +4 more sources

A New Prediction Method for the Preload Drag Force of Linear Motion Rolling Bearing

open access: yesMetals, 2022
Existing studies focusing on the prediction of the preload drag force of linear motion rolling bearing (LMRB) are mainly based on mathematical modeling and vibration signal analysis.
Lu Liu   +6 more
doaj   +1 more source

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