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两同心球间旋转流动类Lorenz方程组的分歧分析
引用本文:王贺元,蒋海斌.两同心球间旋转流动类Lorenz方程组的分歧分析[J].高等学校计算数学学报,2007,29(3):278-288.
作者姓名:王贺元  蒋海斌
作者单位:1. 西安交通大学航空航天学院,西安,710049;辽宁工学院数理系,锦州,121001
2. 辽宁工学院数理系,锦州,121001
基金项目:国家基础研究专项基金(G1999032801-07),中国博士后基金(2005038605),辽宁省教委科研基金资助.
摘    要:0引言两个同心旋转球之间的流动又称为球Couette流动.作为一个简单的模型,研究它能够为揭示流动失稳转捩至湍流这一重大理论课题的规律提供线索;同时,由于球Couette流动更象全球大气流动,研究它也能成为研究大气物理提供一个粗略的模型,为这一方面

关 键 词:旋转流动  Couette流动  方程组  同心球  分歧  大气流动  大气物理  旋转球
修稿时间:2005-09-15

BIFURCATION ANALYSIS OF THE MODEL SYSTEM SIMILAR TO THE LORENZ EQUATIONS OF THE FLOW BETWEEN TWO CONCENTRIC ROTATING SPHERES
Wang Heyuan,Jiang Haibin.BIFURCATION ANALYSIS OF THE MODEL SYSTEM SIMILAR TO THE LORENZ EQUATIONS OF THE FLOW BETWEEN TWO CONCENTRIC ROTATING SPHERES[J].Numerical Mathematics A Journal of Chinese Universities,2007,29(3):278-288.
Authors:Wang Heyuan  Jiang Haibin
Abstract:Bifurcation problems of the model system similar to the Lorenz equa- tions of the Navier-Stokes equations for the flow between two concentric rotating spheres are discussed.Detection conditions of singular point and solution branches are given.First,we introduce some research work of spherical Couette flow and velocity-stream function form of the Navier-Stokes equations for the flow between two concentric rotating spheres.Second,we discuss bifurcation problems of the model system similar to the Lorenz equations of the Navier-Stokes equations for the flow between two concentric rotating spheres.Finally,we give a numerical example of 3-model system similar to the Lorenz equations of the Navier-Stokes equations for the flow between two concentric rotating spheres.
Keywords:Navier-Stokes equations  spherical Couette flow  the Lorenz equations  
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