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pro vyhledávání: '"Pooley C"'
Markov chain Monte Carlo (MCMC) is widely used for Bayesian inference in models of complex systems. Performance, however, is often unsatisfactory in models with many latent variables due to so-called poor mixing, necessitating development of applicat
Externí odkaz:
http://arxiv.org/abs/1903.10221
Akademický článek
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Publikováno v:
Eur. Phys. J. Special Topics 171, 63-71 (2009)
We investigate the dynamics of capillary filling using two lattice Boltzmann schemes: a liquid-gas model and a binary model. The simulation results are compared to the well-known Washburn's law, which predicts that the filled length of the capillary
Externí odkaz:
http://arxiv.org/abs/0911.0459
Publikováno v:
Physical Review E 78, 056709 (2008)
We show that, when a single relaxation time lattice Boltzmann algorithm is used to solve the hydrodynamic equations of a binary fluid for which the two components have different viscosities, strong spurious velocities in the steady state lead to inco
Externí odkaz:
http://arxiv.org/abs/0812.1282
We describe the consequences of time reversal invariance of the Stokes' equations for the hydrodynamic scattering of two low Reynolds number swimmers. For swimmers that are related to each other by a time reversal transformation this leads to the str
Externí odkaz:
http://arxiv.org/abs/0810.1783
Publikováno v:
Physical Review E 77, 067301 (2008)
We show how the capillary filling of microchannels is affected by posts or ridges on the sides of the channels. Ridges perpendicular to the flow direction introduce contact line pinning which slows, or sometimes prevents, filling; whereas ridges para
Externí odkaz:
http://arxiv.org/abs/0805.4231
Autor:
Pooley, C. M., Furtado, K.
Spurious velocities are unphysical currents that appear close to curved interfaces in diffuse interface methods. We analyse the causes of these spurious velocities in the free energy lattice Boltzmann algorithm. By making a suitable choice of the equ
Externí odkaz:
http://arxiv.org/abs/0710.5470
Autor:
Wagner, A. J., Pooley, C. M.
Simulations of liquid-gas systems with extended interfaces are observed to fail to give accurate results for two reasons: the interface can get ``stuck'' on the lattice or a density overshoot develops around the interface. In the first case the bulk
Externí odkaz:
http://arxiv.org/abs/0706.1386
We investigate the hydrodynamic interactions between microorganisms swimming at low Reynolds number. By considering simple model swimmers, and combining analytic and numerical approaches, we investigate the time-averaged flow field around a swimmer.
Externí odkaz:
http://arxiv.org/abs/0705.3612
We employ three numerical methods to explore the motion of low Reynolds number swimmers, modeling the hydrodynamic interactions by means of the Oseen tensor approximation, lattice Boltzmann simulations and multiparticle collision dynamics. By applyin
Externí odkaz:
http://arxiv.org/abs/cond-mat/0701511