Applied Mathematics and Mechanics (English Edition) ›› 1991, Vol. 12 ›› Issue (2): 187-192.

• 论文 • 上一篇    下一篇

TURBULENT COHERENT STRUCTURE AND DYNAMIC SYSTEM

李家春   

  1. LNM, Institute of Mechanics, CAS, Beijing
  • 收稿日期:1990-03-12 出版日期:1991-02-18 发布日期:1991-02-18
  • 基金资助:
    National Natural Science Foundation of China

TURBULENT COHERENT STRUCTURE AND DYNAMIC SYSTEM

Li Jia-chun   

  1. LNM, Institute of Mechanics, CAS, Beijing
  • Received:1990-03-12 Online:1991-02-18 Published:1991-02-18
  • Supported by:
    National Natural Science Foundation of China

摘要: The main difficulties in the study of turbulence via dynamic system lie in how to relate continuum systems of infinite dimension with dynamic system in low dimension space and how to depict its spacial structure. In this paper, we’ll give a comprehensive review on various methods to describe complex systems in low dimension space and new approaches to the resolution of turbulence problems.

关键词: turbulence, coherent structure, dynamic-system, low dimension formulation, Karhunen-Loeve expansion

Abstract: The main difficulties in the study of turbulence via dynamic system lie in how to relate continuum systems of infinite dimension with dynamic system in low dimension space and how to depict its spacial structure. In this paper, we’ll give a comprehensive review on various methods to describe complex systems in low dimension space and new approaches to the resolution of turbulence problems.

Key words: turbulence, coherent structure, dynamic-system, low dimension formulation, Karhunen-Loeve expansion

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