Phase instabilities in charged hard‐sphere mixtures. I. Binary mixtures of salt and hard spheres

1995 ◽  
Vol 103 (18) ◽  
pp. 8098-8110 ◽  
Author(s):  
Paresh U. Kenkare ◽  
Carol K. Hall ◽  
C. Caccamo
Keyword(s):  
Binary Mixtures ◽  
Hard Sphere ◽  
Hard Spheres ◽  
Phase Instabilities

Critical consolute point in hard-sphere binary mixtures: Effect of the value of the eighth and higher virial coefficients on its location

2010 ◽  
Vol 75 (3) ◽  
pp. 359-369 ◽  
Author(s):  
Mariano López De Haro ◽  
Anatol Malijevský ◽  
Stanislav Labík
Keyword(s):  
Equation Of State ◽  
Binary Mixtures ◽  
Hard Sphere ◽  
Hard Spheres ◽  
Virial Coefficients ◽  
Fluid Mixture ◽  
Binary Fluid ◽  
Virial Series ◽  
Consolute Point ◽  
Critical Constants

Various truncations for the virial series of a binary fluid mixture of additive hard spheres are used to analyze the location of the critical consolute point of this system for different size asymmetries. The effect of uncertainties in the values of the eighth virial coefficients on the resulting critical constants is assessed. It is also shown that a replacement of the exact virial coefficients in lieu of the corresponding coefficients in the virial expansion of the analytical Boublík–Mansoori–Carnahan–Starling–Leland equation of state, which still leads to an analytical equation of state, may lead to a critical consolute point in the system.

Phase instabilities in charged hard‐sphere mixtures. II. Binary mixtures of salts

1995 ◽  
Vol 103 (18) ◽  
pp. 8111-8123 ◽  
Author(s):  
Paresh U. Kenkare ◽  
Carol K. Hall ◽  
C. Caccamo
Keyword(s):  
Binary Mixtures ◽  
Hard Sphere ◽  
Phase Instabilities

Note: Depletion potentials in non-additive asymmetric binary mixtures of hard-spheres

2014 ◽  
Vol 140 (2) ◽  
pp. 026101 ◽  
Author(s):  
César D. Estrada-Alvarez ◽  
Erik López-Sánchez ◽  
Gabriel Pérez-Ángel ◽  
Pedro González-Mozuelos ◽  
José Miguel Méndez-Alcaraz ◽  
...  
Keyword(s):  
Binary Mixtures ◽  
Hard Spheres

scholarly journals A note on rattlers in amorphous packings of binary mixtures of hard spheres

2010 ◽  
Vol 132 (17) ◽  
pp. 176101 ◽  
Author(s):  
I. Biazzo ◽  
F. Caltagirone ◽  
G. Parisi ◽  
F. Zamponi
Keyword(s):  
Binary Mixtures ◽  
Hard Spheres

scholarly journals Active binary mixtures of fast and slow hard spheres

Soft Matter ◽  
2020 ◽  
Vol 16 (8) ◽  
pp. 1967-1978 ◽  
Author(s):  
Thomas Kolb ◽  
Daphne Klotsa
Keyword(s):  
Steady State ◽  
Binary Mixtures ◽  
Hard Spheres ◽  
Passive Systems ◽  
Species Activity

Monodisperse active and active/passive systems are subsets of a larger continuum of active/active mixtures. We find that an average of each species' activity weighted by its amount provides a quantity which tunes the dynamic and steady-state behaviors of active mixtures.

scholarly journals Event-Driven Molecular Dynamics Simulation of Hard-Sphere Gas Flows in Microchannels

2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
Volkan Ramazan Akkaya ◽  
Ilyas Kandemir
Keyword(s):  
Molecular Dynamics ◽  
Hard Sphere ◽  
Stokes Equations ◽  
Hard Spheres ◽  
Flow Characteristics ◽  
Dynamics Simulation ◽  
Navier Stokes ◽  
Gas Flows ◽  
Linearized Boltzmann Equation ◽  
Event Driven

Classical solution of Navier-Stokes equations with nonslip boundary condition leads to inaccurate predictions of flow characteristics of rarefied gases confined in micro/nanochannels. Therefore, molecular interaction based simulations are often used to properly express velocity and temperature slips at high Knudsen numbers (Kn) seen at dilute gases or narrow channels. In this study, an event-driven molecular dynamics (EDMD) simulation is proposed to estimate properties of hard-sphere gas flows. Considering molecules as hard-spheres, trajectories of the molecules, collision partners, corresponding interaction times, and postcollision velocities are computed deterministically using discrete interaction potentials. On the other hand, boundary interactions are handled stochastically. Added to that, in order to create a pressure gradient along the channel, an implicit treatment for flow boundaries is adapted for EDMD simulations. Shear-Driven (Couette) and Pressure-Driven flows for various channel configurations are simulated to demonstrate the validity of suggested treatment. Results agree well with DSMC method and solution of linearized Boltzmann equation. At low Kn, EDMD produces similar velocity profiles with Navier-Stokes (N-S) equations and slip boundary conditions, but as Kn increases, N-S slip models overestimate slip velocities.

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