Lattice Boltzmann modelling of droplets on chemically heterogeneous surfaces
Future Generation Computer Systems 20:6 SPEC. ISS. (2004) 993-1001
Abstract:
We use a three-dimensional lattice Boltzmann model to investigate the spreading of mesoscopic droplets on homogeneous and heterogeneous surfaces. On a homogeneous substrate the base radius of the droplet grows with time as t 0.28 for a range of viscosities and surface tensions. The time evolutions collapse onto a single curve as a function of a dimensionless time. On a surface comprising of alternate lyophobic and lyophilic stripes the wetting velocity is anisotropic and the equilibrium shape of the droplet reflects the wetting properties of the underlying substrate. © 2003 Elsevier B.V. All rights reserved.Quantum Hall Ferromagnets, Co-Operative Transport Anisotropy, and the Random Field Ising Model
Chapter in Fundamental Problems of Mesoscopic Physics, Springer Nature 154 (2004) 239-250
Simple swimmer at low Reynolds number: Three linked spheres
Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics 69:6 (2004) 4
Abstract:
We propose a very simple one-dimensional swimmer consisting of three spheres that are linked by rigid rods whose lengths can change between two values. With a periodic motion in a nonreciprocal fashion, which breaks the time-reversal symmetry as well as the translational symmetry, we show that the model device can swim at low Reynolds number. This model system could be used in constructing molecular-sized machines. © 2004 The American Physical Society.Haldane-gap chains in a magnetic field
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT (2004) ARTN P12006
Hydrodynamic and Brownian fluctuations in sedimenting suspensions
PHYSICAL REVIEW LETTERS 93:22 (2004) ARTN 220601