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of 861
pro vyhledávání: '"P. Bedeaux"'
We propose a new methodology for the experimental measurement of the Onsager coefficients of porous media flows by application of the fluctuation-dissipation theorem. The experimental setup consists of a steady-state flow condition in which two incom
Externí odkaz:
http://arxiv.org/abs/2410.03661
Akademický článek
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Autor:
Galteland, Olav, Rauter, Michael T., Bratvold, Mina S., Trinh, Thuat T., Bedeaux, Dick, Kjelstrup, Signe
Darcy's law for porous media transport is given a new local thermodynamic basis in terms of the grand potential of confined fluids. The local effective pressure gradient is determined using non-equilibrium molecular dynamics, and the hydraulic conduc
Externí odkaz:
http://arxiv.org/abs/2203.02334
We describe the thermodynamic state of a single-phase fluid confined to a porous medium with Hill's thermodynamics of small systems, also known as nanothermodynamics. This way of defining small system thermodynamics, with a separate set of control va
Externí odkaz:
http://arxiv.org/abs/2201.13060
Autor:
Dick Bedeaux
Publikováno v:
Entropy, Vol 26, Iss 10, p 821 (2024)
In a multivariable system, there are usually a number of relaxation times. When some of the relaxation times are shorter than others, the corresponding variables will decay to their equilibrium value faster than the others. After the fast variables h
Externí odkaz:
https://doaj.org/article/06b19d1c9f964b06a02e43bd686b2162
We have investigated the state of a nanoconfined fluid in a slit pore in the canonical and isobaric ensembles. The systems were simulated with molecular dynamics simulations. The fluid has a transition to a close-packed structure when the height of t
Externí odkaz:
http://arxiv.org/abs/2111.15253
Publikováno v:
Phys. Rev. A 104, 043502 (2021)
An approach is introduced for the non-parametric reconstruction of the statistical properties of penetrable, isotropic randomly rough surfaces from in-plane, co-polarized light scattering data. Starting from expressions within the Kirchhoff approxima
Externí odkaz:
http://arxiv.org/abs/2105.02745
Publikováno v:
Phys. Rev. E 104, 014131 (2021)
We have considered a shock wave as a surface of discontinuity and computed the entropy production using non-equilibrium thermodynamics for surfaces. The results from this method, which we call the "Gibbs excess method" (GEM), were compared with resul
Externí odkaz:
http://arxiv.org/abs/2102.09019
We describe the thermodynamic state of a highly confined single-phase and single-component fluid in a slit pore using Hill's thermodynamics of small systems. This theory was more recently named nanothermodynamics. We start by constructing an ensemble
Externí odkaz:
http://arxiv.org/abs/2012.00562
The local entropy production in a shock wave was analysed in the framework of non-equilibrium thermodynamics (NET) of surfaces. We show that the thermodynamic state variables in the shock front are equal to their equilibrium values, despite lack of g
Externí odkaz:
http://arxiv.org/abs/2003.08378