Zobrazeno 1 - 10
of 174
pro vyhledávání: '"Ladd, A. J. C."'
Autor:
Szymczak, Piotr, Ladd, Anthony J. C.
The reactive-infiltration instability, which develops when a porous matrix is dissolved by a flowing fluid, contains two important length scales. Here we outline a linear stability analysis that simultaneously incorporates both scales. We show that t
Externí odkaz:
http://arxiv.org/abs/1306.5034
Autor:
Szymczak, Piotr, Ladd, Anthony J. C.
A reactive fluid dissolving the surface of a uniform fracture will trigger an instability in the dissolution front, leading to spontaneous formation of pronounced well-spaced channels in the surrounding rock matrix. Although the underlying mechanism
Externí odkaz:
http://arxiv.org/abs/1204.0917
Autor:
Szymczak, Piotr, Ladd, Anthony J. C.
A reactive fluid dissolving the surrounding rock matrix can trigger an instability in the dissolution front, leading to spontaneous formation of pronounced channels or wormholes. Theoretical investigations of this instability have typically focused o
Externí odkaz:
http://arxiv.org/abs/1103.3816
Autor:
Szymczak, Piotr, Ladd, Anthony J. C.
The solutional origin of limestone caves was recognized over a century ago, but the short penetration length of an undersaturated solution made it seem impossible for long conduits to develop. This is contradicted by field observations, where extende
Externí odkaz:
http://arxiv.org/abs/1011.4111
The aim of this paper is to compare results from lattice-Boltzmann and Brownian dynamics simulations of linear chain molecules. We have systematically varied the parameters that may affect the accuracy of the lattice-Boltzmann simulations, including
Externí odkaz:
http://arxiv.org/abs/0905.2434
Autor:
Szymczak, P., Ladd, A. J. C.
We investigate the dissolution of artificial fractures with three-dimensional, pore-scale numerical simulations. The fluid velocity in the fracture space was determined from a lattice-Boltzmann method, and a stochastic solver was used for the transpo
Externí odkaz:
http://arxiv.org/abs/0902.1374
We give a brief account of the development of methods to include thermal fluctuations into lattice Boltzmann algorithms. Emphasis is put on our recent work (Phys. Rev. E 76, 036704 (2007)) which provides a clear understanding in terms of statistical
Externí odkaz:
http://arxiv.org/abs/0809.1184
Autor:
Duenweg, Burkhard, Ladd, Anthony J. C.
Publikováno v:
Advances in Polymer Science 221, 89 (2009)
This article concerns numerical simulations of the dynamics of particles immersed in a continuum solvent. As prototypical systems, we consider colloidal dispersions of spherical particles and solutions of uncharged polymers. After a brief explanation
Externí odkaz:
http://arxiv.org/abs/0803.2826
We propose a new formulation of the fluctuating lattice Boltzmann equation that is consistent with both equilibrium statististical mechanics and fluctuating hydrodynamics. The formalism is based on a generalized lattice-gas model, with each velocity
Externí odkaz:
http://arxiv.org/abs/0707.1581
Autor:
Ladd, Anthony J. C.
A new and very general technique for simulating solid-fluid suspensions has been described in a previous paper (Part I); the most important feature of the new method is that the computational cost scales with the number of particles. In this paper (P
Externí odkaz:
http://arxiv.org/abs/comp-gas/9306005