Zobrazeno 1 - 10
of 173
pro vyhledávání: '"Garcia, Alejandro L."'
The second law of thermodynamics stipulates that entropy production is non-negative in macroscopic systems, reaching zero at thermodynamic equilibrium. As a corollary, this implies that the state trajectory of macroscopic systems is inherently time-i
Externí odkaz:
http://arxiv.org/abs/2410.19578
Autor:
Garcia, Alejandro L., Bell, John B., Nonaka, Andrew, Srivastava, Ishan, Ladiges, Daniel, Kim, Changho
These notes are an introduction to fluctuating hydrodynamics (FHD) and the formulation of numerical schemes for the resulting stochastic partial differential equations (PDEs). Fluctuating hydrodynamics was originally introduced by Landau and Lifshitz
Externí odkaz:
http://arxiv.org/abs/2406.12157
Autor:
Wang, J. Galen, Ladiges, Daniel R., Srivastava, Ishan, Carney, Sean P., Nonaka, Andy J., Garcia, Alejandro L., Bell, John B.
We study the role of steric effects on the induced-charge electro-osmosis (ICEO) phenomenon using a recently developed mesoscale fluid model. A hybrid Eulerian-Lagrangian method is used to simulate the dynamics of discrete immersed ions in a thermall
Externí odkaz:
http://arxiv.org/abs/2305.11313
The Rayleigh-Plateau instability occurs when surface tension makes a fluid column become unstable to small perturbations. At nanometer scales, thermal fluctuations are comparable to surface energy densities. Consequently, at these scales, thermal flu
Externí odkaz:
http://arxiv.org/abs/2304.03855
Autor:
Mercado, Enrique, Jung, Hyun Tae, Kim, Changho, Garcia, Alejandro L., Nonaka, Andy J., Bell, John B.
Publikováno v:
J. Chem. Phys. 159, 144107 (2023)
Dissociative adsorption onto a surface introduces dynamic correlations between neighboring sites not found in non-dissociative absorption. We study surface coverage dynamics where reversible dissociative adsorption of dimers occurs on a finite linear
Externí odkaz:
http://arxiv.org/abs/2212.12286
Publikováno v:
Phys. Rev. E 107, 015305 (2023)
We present a numerical formulation for the solution of non-isothermal, compressible, Navier-Stokes equations with thermal fluctuations to describe mesoscale transport phenomena in multispecies fluid mixtures. The novelty of our numerical method is th
Externí odkaz:
http://arxiv.org/abs/2209.11292
Autor:
Ladiges, Daniel R., Wang, Jailun G., Srivastava, Ishan, Carney, Sean P., Nonaka, Andrew, Garcia, Alejandro L., Donev, Aleksander, Bell, John B.
Publikováno v:
Phys. Rev. E 106, 035104 (2022)
In this article we develop an algorithm for the efficient simulation of electrolytes in the presence of physical boundaries. In previous work the Discrete Ion Stochastic Continuum Overdamped Solvent (DISCOS) algorithm was derived for triply periodic
Externí odkaz:
http://arxiv.org/abs/2204.14167
Using fluctuating hydrodynamics we investigate the effect of thermal fluctuations in the dissipation range of homogeneous, isotropic turbulence. Simulations confirm theoretical predictions that the energy spectrum is dominated by these fluctuations a
Externí odkaz:
http://arxiv.org/abs/2109.08761
We present predictions for the statistical error due to finite sampling in the presence of thermal fluctuations in molecular simulation algorithms. Specifically, we present predictions for the error dependence on hydrodynamic parameters and the numbe
Externí odkaz:
http://hdl.handle.net/1721.1/3708
We present predictions for the statistical error due to finite sampling in the presence of thermal fluctuations in molecular simulation algorithms. Expressions for the fluid velocity, density and temperature are derived using equilibrium statistical
Externí odkaz:
http://hdl.handle.net/1721.1/4017