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相关论文: Phase Separation in Binary Fluid Mixtures with Con…

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The demixing of a binary fluid mixture, under gravity, is a two stage process. Initially droplets, or in general aggregates, grow diffusively by collecting supersaturation from the bulk phase. Subsequently, when the droplets have grown to a…

统计力学 · 物理学 2014-12-01 Martin Rohloff , Tobias Lapp , Jürgen Vollmer

The mixed convection flow in a plane channel with adiabatic boundaries is examined. The boundaries have an externally prescribed relative velocity defining a Couette-like setup for the flow. A stationary flow regime is maintained with a…

流体动力学 · 物理学 2023-10-04 A. Barletta , M. Celli , S. Lazzari , P. V. Brandão

The dynamics of a binary system with non conserved order parameter under a plain shear flow with rate $\gamma $ is solved analytically in the large-N limit. A phase transition is observed at a critical temperature $T_c(\gamma)$. After a…

统计力学 · 物理学 2009-11-07 Federico Corberi , Giuseppe Gonnella , Eugenio Lippiello , Marco Zannetti

We propose a model describing the phase behavior of two-component membranes consisting of binary mixtures of electrically charged and neutral lipids. We take into account the structural phase transition (main-transition) of the hydrocarbon…

软凝聚态物质 · 物理学 2016-07-11 Naofumi Shimokawa , Hiroki Himeno , Tsutomu Hamada , Masahiro Takagi , Shigeyuki Komura , David Andelman

We employ molecular dynamics simulation to study the phase separation and rheological properties of a three-dimensional binary liquid mixture with hydrodynamics undergoing simple shear deformation. The impact of shear intensity on domain…

软凝聚态物质 · 物理学 2024-12-05 Daniya Davis , Parameshwaran A , Bhaskar Sen Gupta

The phase separation mechanism of a binary liquid mixture off-critically quenched in its miscibility gap is nucleation and growth, its homogeneous phase reaching a metastable equilibrium state. The successive stages of growth of the…

统计力学 · 物理学 2009-11-18 Jean Colombani , Jacques Bert

We propose a model to study symmetric binary fluids, based in the mesoscopic molecular simulation technique known as multiparticle collision, where space and state variables are continuous while time is discrete. We include a repulsion rule…

适应与自组织系统 · 物理学 2016-06-22 C. Echeverria , K. Tucci , O. Alvarez-Llamoza , E. E. Orozco-Guillén , M. Morales , M. G. Cosenza

We discuss mixing/segregation phenomena in a schematic hard spheres lattice model for binary mixtures of granular media, by analytical evaluation, within Bethe-Peierls approximation, of Edwards' partition function. The presence of…

统计力学 · 物理学 2007-05-23 M. Tarzia , A. Fierro , M. Nicodemi , M. Pica Ciamarra , A. Coniglio

We develop a theory for thermodynamic instabilities of complex fluids composed of many interacting chemical species organised in families. This model includes partially structured and partially random interactions and can be solved exactly…

生物物理 · 物理学 2022-07-21 Giorgio Carugno , Izaak Neri , Pierpaolo Vivo

A previously developed fundamental measure fucntional [J. Chem. Phys. vol.107, 6379 (1997)] is used to study the phase behavior of a system of parallel hard cubes. The single-component fluid exhibits a continuous transition to a solid with…

软凝聚态物质 · 物理学 2009-10-31 Y. Martinez-Raton , J. A. Cuesta

We investigate the effect of a temperature dependent viscosity on the onset of thermal convection in a horizontal layer of a binary fluid mixture that is heated from below. For an exponential temperature dependence of the viscosity, we find…

流体动力学 · 物理学 2015-06-17 Markus Hilt , Martin Glässl , Walter Zimmermann

Raising the temperature of a material enhances the thermal motion of particles. Such an increase in thermal energy commonly leads to the melting of a solid into a fluid and eventually vaporises the liquid into a gaseous phase of matter.…

量子气体 · 物理学 2023-06-02 Juan Sánchez-Baena , Claudia Politi , Fabian Maucher , Francesca Ferlaino , Thomas Pohl

We present the results of a variational calculation of the frequencies of the low-lying Landau two-fluid hydrodynamic modes in a trapped Fermi superfluid gas at unitarity. Landau's two-fluid hydrodynamics is expected to be the correct…

其他凝聚态物理 · 物理学 2008-12-12 Edward Taylor , Hui Hu , Xia-Ji Liu , Allan Griffin

The phase-separation kinetics of binary fluids in shear flow is studied numerically in the framework of the continuum convection-diffusion equation based on a Ginzburg-Landau free energy. Simulations are carried out for different…

凝聚态物理 · 物理学 2009-10-31 F. Corberi , G. Gonnella , A. Lamura

Compared to pure fluids, binary mixtures display a very diverse phase behavior, which depends sensitively on the parameters of the microscopic potential. Here we investigate the phase diagrams of simple model mixtures by use of a…

软凝聚态物质 · 物理学 2009-11-07 A. Parola , D. Pini , L. Reatto , M. Tau

Binary mixtures are known to phase separate via both nucleation and spinodal decomposition, depending on the initial composition and extent of the quench. Here we develop an energy landscape view of phase separation and non-ideality in…

统计力学 · 物理学 2010-12-22 Sarmistha Sarkar , Biman Bagchi

We provide an exact mapping between the density functional of a binary mixture and that of the effective one-component fluid in the limit of infinite asymmetry. The fluid of parallel hard cubes is thus mapped onto that of parallel adhesive…

软凝聚态物质 · 物理学 2009-10-31 Yuri Martinez-Raton , Jose A. Cuesta

A linear analysis based on two-fluid equations in the approximation of a cold plasma, wherein the plasma temperature is assumed to be zero, demonstrates that a two-stream instability occurs in all cases. However, if this were true, the…

等离子体物理 · 物理学 2023-06-28 Shinji Koide , Masaaki Takahashi , Rohta Takahashi

We investigate binary mixtures undergoing phase separation after a second (deeper) temperature quench into two- and three-phase coexistence regions. The analysis is based on a lattice theory previously developed for gas-liquid separation in…

软凝聚态物质 · 物理学 2019-11-22 Pablo de Castro , Peter Sollich

The nonlinear development of the strong Buneman instability and the associated fast electron heating in thin current layers with $\Omega_e/\omega_{pe} <1$ are explored. Phase mixing of the electrons in wave potential troughs and a rapid…

等离子体物理 · 物理学 2015-06-12 H. Che , J. F. Drake , M. Swisdak , M. Goldstein