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Bundling of elastic filaments induced by hydrodynamic interactions
(Physical Review Fluids, 2017-12-01)
Peritrichous bacteria swim in viscous fluids by rotating multiple helical flagellar filaments. As the bacterium swims forward, all its flagella rotate in synchrony behind the cell in a tight helical bundle. When the bacterium ...
Stability analysis for n -periodic arrays of fluid systems
(Physical Review Fluids, 2017-11-01)
© 2017 American Physical Society. A computational framework is proposed for the linear modal and nonmodal analysis of fluid systems consisting of a periodic array of n identical units. A formulation in either time or ...
Active particles in periodic lattices
(Institute of Physics (IoP) and Deutsche Physikalische GesellschaftNew Journal of Physics, 2017-11-01)
Both natural and artificial small-scale swimmers may often self-propel in environments subject to complex geometrical constraints. While most past theoretical work on low-Reynolds number locomotion addressed idealised ...
The grasshopper problem.
(Royal Society of LondonProceedings. Mathematical, physical, and engineering sciences, 2017-11-22)
We introduce and physically motivate the following problem in geometric combinatorics, originally inspired by analysing Bell inequalities. A grasshopper lands at a random point on a planar lawn of area 1. It then jumps ...
Vortex-ring-induced stratified mixing: Mixing model
(Cambridge University PressJournal of Fluid Mechanics, 2018-02-25)
The study of vortex-ring-induced mixing has been significant for understanding stratified turbulent mixing in the absence of a mean
flow. Renewed interest in this topic has prompted the development of a one-dimensional ...
Holographic thermalization, quasinormal modes and superradiance in Kerr-AdS
(Journal of High Energy Physics, 2014-01-01)
AdS flowing black funnels: Stationary AdS black holes with non-Killing horizons and heat transport in the dual CFT
(Classical and Quantum Gravity, 2013-04-07)
Vortices in holographic superfluids and superconductors as conformal defects
(Journal of High Energy Physics, 2014-01-01)
Rings, ripples, and rotation: Connecting black holes to black rings
(Journal of High Energy Physics, 2014-01-01)
Non-axisymmetric instability of rotating black holes in higher dimensions
(Physical Review D - Particles, Fields, Gravitation and Cosmology, 2013-08-26)