Diffusion and correlations in lattice-gas automata

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Diffusion in Lorentz Lattice Gas Automata with Backscattering

The probability of first return to the initial interval x and the diffusion tensor D~a are calculated exactly for a ballistic Lorentz gas on a Bethe lattice or Cayley tree. It consists of a moving particle and a fixed array of scatterers, located at the nodes, and the lengths of the intervals between scatterers are determined by a geometric distribution. The same values for x and D=a apply also...

متن کامل

Microscopic theory for long-range spatial correlations in lattice gas automata.

Lattice gas automata with collision rules that violate the conditions of semi-detailed-balance exhibit algebraic decay of equal time spatial correlations between fluctuations of conserved densities. This is shown on the basis of a systematic microscopic theory. Analytical expressions for the dominant long range behavior of correlation functions are derived using kinetic theory. We discuss a mod...

متن کامل

Lattice Gas Automata Simulation of Adsorption Process of Polymer in Porous Media

Lattice gas automata (LGA) model is developed to simulate polymer adsorption process by adding some collision rules. The simulation result of the model is matched with batch experiment and compared with accepted isothermal adsorption equations. They show that the model is viable to perform simulation of the polymer adsorption process. The LGA model is then applied for simulating continuous poly...

متن کامل

Evy Laws for Lattice Gas Automata

We consider the use of power law distributions P (x) j x j ?1? (1 < 2) for lattice gas automata (LGA). (a) We implement the distribution P (`) for particle displacements with length j ` j in a LGA and we investigate the resulting diiusive transport. We show that anomalous diiusion (var(j ` j) t 2==) cannot be observed, but that normal diiusion (h` 2 i Dt) can be tuned so that the diiusion coeec...

متن کامل

A Poiseuille Viscometer for Lattice Gas Automata

A b stra ct . Lattice gas automata have been recently proposed as a new technique for the numerical integration of the two-dimensional Nav ier-Stokes equation. We have accurately tes ted a stra ightforward var iant of the original model, due to Fr isch, Hasslacher, and Pomeau, in a simp le geometry equivalent to two-dimensional Poiseuille (Cha nnel) flow dr iven by a uniform body force. The mom...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Physical Review E

سال: 1997

ISSN: 1063-651X,1095-3787

DOI: 10.1103/physreve.56.6331