计算物理 ›› 1988, Vol. 5 ›› Issue (4): 430-436.

• 论文 • 上一篇    下一篇

均匀湍流中的奇怪吸引子

酆庆增, 顾志福, 陈为炎   

  1. 北京大学力学系
  • 收稿日期:1988-02-13 出版日期:1988-12-25 发布日期:1988-12-25

A STRANGE ATTRACTOR IN HOMOGENEOUS TURBULENCE

Fong Ching-Zhen, Gu Zhi-fu, Chen Wei-yan   

  1. Department of Mechanics, Peking University
  • Received:1988-02-13 Online:1988-12-25 Published:1988-12-25

摘要: 本文对于实测的湍流信号采用延迟坐标重建相空间技术计算了它的关联维数,熵和最大Лялнов指数,从而指出这是一种受随机噪声干扰的确定性的混沌现象,它在相空间的吸引子是一个随机噪声背景上的奇怪吸引子。

Abstract: In this paper we calculate the correlation dimensions, entropies, and the largest Lyapunov exponents of homogeneous furbulence signals by making use of the technique of phase space reconstruction with delay coordinates. The results show that this is a kind of deterministic chaos perturbed by the random noise, its underlying attractor is a strange attractor with the background of random noise.