Zobrazeno 1 - 10
of 22
pro vyhledávání: '"de Zárate, J. M. Ortiz"'
In stationary nonequilibrium states coupling between hydrodynamic modes causes thermal fluctuations to become long ranged inducing nonequilibrium Casimir pressures. Here we consider nonequilibrium Casimir pressures induced in liquids by a velocity gr
Externí odkaz:
http://arxiv.org/abs/1907.13097
In stationary nonequilibrium states a coupling between hydrodynamic modes causes thermal fluctuations to become long ranged inducing nonequilibrium Casimir forces or pressures. Here we consider nonequilibrium Casimir pressures induced in liquids by a
Externí odkaz:
http://arxiv.org/abs/1804.06125
Publikováno v:
Phys. Rev. E 93, 032117 (2016)
In this article we derive expressions for Casimir-like pressures induced by nonequilibrium concentration fluctuations in liquid mixtures. The results are then applied to liquid mixtures in which the concentration gradient results from a temperature g
Externí odkaz:
http://arxiv.org/abs/1601.03538
Publikováno v:
Phys. Rev. E 93, 012148 (2016)
Long-range thermal fluctuations appear in fluids in nonequilibrium states leading to fluctuation-induced Casimir-like forces. Two distinct mechanisms have been identified for the origin of the long-range nonequilibrium fluctuations in fluids subjecte
Externí odkaz:
http://arxiv.org/abs/1511.03912
Publikováno v:
European Physical Journal E, Vol. 38 (2015), article# 99
Because of the spatially long-ranged nature of spontaneous fluctuations in thermal non-equilibrium systems, they are affected by boundary conditions for the fluctuating hydrodynamic variables. In this paper we consider a liquid mixture between two ri
Externí odkaz:
http://arxiv.org/abs/1505.01355
Publikováno v:
Physical Review Letters, 115 (2015) 035901
In this Letter we consider a liquid mixture confined between two thermally conducting walls subjected to a stationary temperature gradient. While in a one-component liquid non-equilibrium fluctuation forces appear inside the liquid layer only, non-eq
Externí odkaz:
http://arxiv.org/abs/1503.03878
Publikováno v:
Phys. Rev. E 89, 022145 (2014)
Correlations in fluids in nonequilibrium steady states are long ranged. Hence, finite-size effects have important consequences in the nonequilibrium thermodynamics of fluids. One consequence is that nonequilibrium temperature fluctuations induce none
Externí odkaz:
http://arxiv.org/abs/1401.1339
Publikováno v:
Phys. Rev. Lett. 110 (2013), 235902
In this letter we consider the fluctuation induced force exerted between two plates separated by a distance $L$ in a fluid with a temperature gradient. We predict that, for a range of distances $L$, this non-equilibrium force is anomalously large com
Externí odkaz:
http://arxiv.org/abs/1302.4704
Autor:
de Zarate, J. M. Ortiz, Sengers, J. V.
Publikováno v:
Physica A, vol. 300, pp. 25-52 (2001)
Starting from the linearized fluctuating Boussinesq equations we derive an expression for the structure factor of fluids in stationary convection-free thermal nonequilibrium states, taking into account both gravity and finite-size effects. It is demo
Externí odkaz:
http://arxiv.org/abs/cond-mat/0109250
Publikováno v:
J. Chem. Phys. 112, 9139 (2000)
We have performed light-scattering measurements in dilute and semidilute polymer solutions of polystyrene in toluene when subjected to stationary temperature gradients. Five solutions with concentrations below and one solution with a concentration ab
Externí odkaz:
http://arxiv.org/abs/cond-mat/0002379