Results 11 to 20 of about 2,809 (42)

Transient Convective Spin-up Dynamics

open access: yes, 2020
We study the formation, longevity and breakdown of convective rings during impulsive spin-up in square and cylindrical containers using direct numerical simulations.
Ravichandran, S., Wettlaufer, J. S.
core   +1 more source

Dynamics and symmetries of flow reversals in turbulent convection

open access: yes, 2011
Based on direct numerical simulations and symmetry arguments, we show that the large-scale Fourier modes are useful tools to describe the flow structures and dynamics of flow reversals in Rayleigh-B\'enard convection (RBC).
Chandra, Mani, Verma, Mahendra K.
core   +1 more source

Nonlinear Dynamics of Capacitive Charging and Desalination by Porous Electrodes

open access: yes, 2009
The rapid and efficient exchange of ions between porous electrodes and aqueous solutions is important in many applications, such as electrical energy storage by super-capacitors, water desalination and purification by capacitive deionization (or ...
A. Frumkin   +8 more
core   +2 more sources

Large Scale Structures a Gradient Lines: the case of the Trkal Flow

open access: yes, 2010
A specific asymptotic expansion at large Reynolds numbers (R)for the long wavelength perturbation of a non stationary anisotropic helical solution of the force less Navier-Stokes equations (Trkal solutions) is effectively constructed of the Beltrami type
A. Libin   +24 more
core   +1 more source

Emergence of stochastic dynamics in plane Couette flow [PDF]

open access: yes, 2016
Spatially localized states play an important role in transition to turbulence in shear flows (Kawahara, Uhlmann & van Veen, Annu. Rev. Fluid Mech. 44, 203 (2012)).
Beaume, C, Gvalani, R
core   +1 more source

Force moments of an active particle in a complex fluid

open access: yes, 2017
A generalized reciprocal theorem is formulated for the motion and hydrodynamic force moments of an active particle in an arbitrary background flow of a (weakly nonlinear) complex fluid.
Elfring, Gwynn J.
core   +1 more source

Fluctuation-enhanced electric conductivity in electrolyte solutions

open access: yes, 2017
In this letter we analyze the effects of an externally applied electric field on thermal fluctuations for a fluid containing charged species. We show in particular that the fluctuating Poisson-Nernst-Planck equations for charged multispecies diffusion ...
Bell, John B.   +4 more
core   +1 more source

How does flow in a pipe become turbulent?

open access: yes, 2007
The transition to turbulence in pipe flow does not follow the scenario familiar from Rayleigh-Benard or Taylor-Couette flow since the laminar profile is stable against infinitesimal perturbations for all Reynolds numbers.
A. Meseguer   +40 more
core   +2 more sources

Note on dust trapping in inviscid vortex pairs with unequal strengths

open access: yes, 2010
We investigate theoretically the motion of tiny heavy passive particles transported in a plane inviscid flow consisting of two point vortices, in order to understand particle dispersion and trapping during vortex interaction.
Angilella, Jean-Regis   +2 more
core   +1 more source

Extended Lattice Boltzmann Model. [PDF]

open access: yesEntropy (Basel), 2021
Saadat MH, Dorschner B, Karlin I.
europepmc   +1 more source

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