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Multi-block Lattice Boltzmann method: Extension to 3D and validation in turbulence

Yu, Dazhi; Girimaji, Sharath S. - In: Physica A: Statistical Mechanics and its Applications 362 (2006) 1, pp. 118-124

In this paper, a multi-block method is applied to 3D problems. In this application, interpolation schemes are carefully addressed to avoid the inconsistency when information is transferred from coarse to fine blocks. Two test cases are employed to assess information transfer scheme and accuracy...

Persistent link: https://www.econbiz.de/10010871683

Asymmetrical diffusion across a porous medium-homogeneous fluid interface

Alvarez-Ramirez, J.; Dagdug, L.; Inzunza, L.; Rodriguez, E. - In: Physica A: Statistical Mechanics and its Applications 407 (2014) C, pp. 24-32

uses Brownian motion simulations for exploring the effects of the interface in the diffusion transport of passive particles … medium-to-homogeneous fluid interface than in the opposite direction. Besides, such asymmetry is stronger as the porosity … transitions in porosity and effective diffusivity in a vicinity of the interface. …

Persistent link: https://www.econbiz.de/10010872269

Convergent approximation for the 2-body correlation function in an interface

Ispolatov, Iaroslav - In: Physica A: Statistical Mechanics and its Applications 271 (1999) 1, pp. 23-35

-phase interface. It is based on a fourth-order expansion of the Hamiltonian in terms of fluctuations around the equilibrium profile …

Persistent link: https://www.econbiz.de/10010873655

Critical interface in two dimensions

Robert, M.; Reaney, I.; Stadelmann, P. - In: Physica A: Statistical Mechanics and its Applications 229 (1996) 1, pp. 47-52

The interface separating two-dimensional phases close to a critical point is observed in the ferroelectric BaZrxTi1−xO3 …

Persistent link: https://www.econbiz.de/10011057675

The roughness and growth of a silver–mercury reaction interface

Be'er, Avraham; Lereah, Yossi; Hecht, Inbal; … - In: Physica A: Statistical Mechanics and its Applications 302 (2001) 1, pp. 297-301

The spreading of small droplets (50–200μm) of Hg on thin Ag films has been studied, using optical microscope, scanning electron microscope (SEM) and atomic force microscope (AFM). The growing rough surfaces have been analyzed in order to determine the roughness (α) and growth (β) exponents....

Persistent link: https://www.econbiz.de/10011063811

Interfacial curvature in phase-separating binary fluids: comparison between computer simulation and experiments

Koga, Tsuyoshi; Jinnai, Hiroshi; Hashimoto, Takeji - In: Physica A: Statistical Mechanics and its Applications 263 (1999) 1, pp. 369-377

mixture of deuterated polybutadiene and polybutadiene. We especially focus on the curvatures of the interface of phase …

Persistent link: https://www.econbiz.de/10010586853

Scaling behavior of roughness in the two-dimensional Kardar–Parisi–Zhang growth

Ma, K.; Jiang, J.; Yang, C.B. - In: Physica A: Statistical Mechanics and its Applications 378 (2007) 2, pp. 194-200

We investigate the time evolution of the roughness of Kadar–Parisi–Zhang (KPZ) equation in (2+1) dimensions. Scaling behavior of the roughness is analyzed from scale transformations and the scaling function is obtained from numerical simulations.

Persistent link: https://www.econbiz.de/10010589437

On kink states of ferromagnetic chains

Bach, Ky-Thuan; Macris, Nicolas - In: Physica A: Statistical Mechanics and its Applications 279 (2000) 1, pp. 386-397

We study kink states of quantum, ferromagnetic, easy axis spin 12 chains at zero temperature. These are produced by applying opposite magnetic fields on the two end sites of the chain. For sufficiently strong anisotropy and boundary field, we obtain estimates on the wave function of the lowest...

Persistent link: https://www.econbiz.de/10010590198

The effect of the transverse crystal field on the magnetic properties of a superlattice with disordered interface

Boughrara, M.; Kerouad, M. - In: Physica A: Statistical Mechanics and its Applications 374 (2007) 2, pp. 669-679

atoms, L layers of spin-1 B atoms and a disordered interface in between that is characterized by a random arrangement of A …

Persistent link: https://www.econbiz.de/10010590599

Fractals from a reaction diffusion process

Graber, R - In: Physica A: Statistical Mechanics and its Applications 271 (1999) 3, pp. 223-230

We introduce a reaction diffusion model on a lattice involving two particles species, A and B. B particles initially fill the lattice, and A particles diffuse transforming B particles to A particles each time they meet. We keep the number of A particles constant eliminating the oldest ones. The...

Persistent link: https://www.econbiz.de/10010664902