Fluctuating hydrodynamic modelling of fluids at the nanoscale
نویسندگان
چکیده
G. De Fabritiis, ∗ M. Serrano, † R. Delgado-Buscalioni, ‡ and P. V. Coveney § Computational Biochemistry and Biophysics Lab (GRIB/IMIM-UPF), Barcelona Biomedical Research Park (PRBB), C/ Dr. Aiguader 88, 08003, Barcelona, Spain Depto. F́ısica Fundamental, Facultad de Ciencias, UNED, Paseo Senda del Rey 9, 28040 Madrid, Spain. Depto. Ciencias y Técnicas Fisicoqúımicas, Facultad de Ciencias, UNED, Paseo Senda del Rey 9, Madrid 28040, Spain. Centre for Computational Science, Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ London, U.K.
منابع مشابه
Fluctuating hydrodynamic modeling of fluids at the nanoscale.
A good representation of mesoscopic fluids is required to combine with molecular simulations at larger length and time scales [De Fabritiis, Phys. Rev. Lett. 97, 134501 (2006)]. However, accurate computational models of the hydrodynamics of nanoscale molecular assemblies are lacking, at least in part because of the stochastic character of the underlying fluctuating hydrodynamic equations. Here ...
متن کاملFluctuating hydrodynamics for multiscale simulation of inhomogeneous fluids: mapping all-atom molecular dynamics to capillary waves.
We introduce a multiscale framework to simulate inhomogeneous fluids by coarse-graining an all-atom molecular dynamics (MD) trajectory onto sequential snapshots of hydrodynamic fields. We show that the field representation of an atomistic trajectory is quantitatively described by a dynamic field-theoretic model that couples hydrodynamic fluctuations with a Ginzburg-Landau free energy. For liqui...
متن کاملCasimir effects of nano objects in fluctuating scalar and electromagnetic fields: Thermodynamic investigating
Casimir entropy is an important aspect of casimir effect and at the nanoscale is visible. In this paper, we employ the path integral method to obtain a general relation for casimir entropy and internal energy of arbitrary shaped objects in the presence of two, three and four dimension scalar fields and the electromagnetic field. For this purpose, using Lagrangian and based on a perturb...
متن کاملHydrodynamic fluctuations in the Kolmogorov flow: linear regime.
The Landau-Lifshitz fluctuating hydrodynamics is used to study the statistical properties of the linearized Kolmogorov flow. The relative simplicity of this flow allows a detailed analysis of the fluctuation spectrum from near equilibrium regime up to the vicinity of the first convective instability threshold. It is shown that in the long time limit the flow behaves as an incompressible fluid, ...
متن کاملA Numerical Model for Brownian Particles Fluctuating in Incompressible Fluids
We present a numerical method that consistently implements thermal fluctuations and hydrodynamic interactions to the motion of Brownian particles dispersed in incompressible host fluids. In this method, the thermal fluctuations are introduced as random forces acting on the Brownian particles. The hydrodynamic interactions are introduced by directly resolving the fluid motions with the particle ...
متن کامل