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河湾形态演变的自组织及其稳定性
引用本文:汪富泉,曹叔尤,丁晶.河湾形态演变的自组织及其稳定性[J].水科学进展,2001,12(1):7-16.
作者姓名:汪富泉  曹叔尤  丁晶
作者单位:1.广东茂名学院基础部, 广东茂名525000;
基金项目:国家自然科学基金资助项目(59890200);水力部重大项目(59679010);国家重点实验室访问学者基金(教育部科技司[1999]154号);四川大学高速水利学国家重点实验室开放基金资助.
摘    要:运用自组织理论和方法建立河湾的演化方程.结合Fokker-Planck方程解析解的性质与Langevin方程的动力学特征,推断河湾演变的基本规律如对称破缺、形态转变、演变趋势及速度等.然后根据数学模型与理论分析结果,研究长江洲湾,下荆江尺八口、上车湾、碾子湾等实际河湾演变的自组织规律及其稳定性特征.理论推导结果与实际观测资料基本一致

关 键 词:河床演变    河湾几何形态    稳定性    自组织
文章编号:1001-6791(2001)01-0007-10
收稿时间:1999-11-10

Self-Organization and Stability of
WANG Fu-quan,CAO Shu-you,DING Jing.Self-Organization and Stability of[J].Advances in Water Science,2001,12(1):7-16.
Authors:WANG Fu-quan  CAO Shu-you  DING Jing
Institution:1.The Basic Department of Maoming College, Maoming 525000, China;2.The Hydraulic and Hydroelectric Power college of Sichuan University, Chengdu, 610065, China
Abstract:The evolution equations of river bends are proposed by using theself-organized theory and method which are the Fokker-Planck equation and the Langevin equation.And the qualitative achievements,such as the evolution laws of river bends, symmetry damaged, form transition, and developing trend,are got by detailed analysis of analytic solution of the Fokker-Planck and the Langevin equations and it's dynamic inferences. Finally, we analyze the evolution features of some really river bends. The theoretical results tally with the observed results.
Keywords:fluvial processes  geometric forms of river bends  stability  self-organization  
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