Coexisting attractors in compressible Rayleigh-Benard flow

被引：12

作者：

Castillo, VM ^{[1
]}

Hoover, WG ^{[1
]}

Hoover, CG ^{[1
]}

机构：

[1] LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94551

来源：

PHYSICAL REVIEW E | 1997年 / 55卷 / 05期

关键词：

D O I：

10.1103/PhysRevE.55.5546

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We demonstrate that precise solutions of the convective flow equations for a compressible conducting viscous fluid can give degenerate stationary states. That is, two or more completely different stable flows can result for fixed stationary boundary conditions. We characterize these complex flows with finite-difference, smooth-particle methods, and high-order implicit methods. The fluids treated here are viscous conducting gases, enclosed by thermal boundaries in a gravitational field-the ''Rayleigh-Benard problem.'' Degenerate solutions occur in both two- and three-dimensional simulations. This coexistence of solutions is a macroscopic manifestation of the strange attractors seen in atomistic systems far from equilibrium.

引用

页码：5546 / 5550

页数：5

共 13 条

[1] OSCILLATORY INSTABILITY OF CONVECTION ROLLS IN A LOW PRANDTL NUMBER FLUID [J].