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非均匀沙自组织临界性及其应用研究
引用本文:姚令侃,方铎.非均匀沙自组织临界性及其应用研究[J].水利学报,1997(3):26-32.
作者姓名:姚令侃  方铎
作者单位:四川联合大学高速水力学国家重点实验室
基金项目:国家自然科学基金委与中国长江三峡工程开发总公司联合资助,中国博士后科学基金,四川联大高速水力学国家重点实验室研究基金
摘    要:本文用自组织临界性理论的观点探索非均匀沙与均匀沙之间本质的区别.首先介绍了自组织临界状态理论的基本概念;然后叙述了水槽实验的过程,证明了水下非均匀沙属于自组织临界性系统的可能性;最后,基于自组织临界性系统的标度律,应用重正化群理论对形成河床抗冲粗化层临界覆盖面积率进行了推导

关 键 词:非均匀沙,自组织临界状态,重正化群,抗冲粗化层

Study on the self organized criticality of non\|uniform\=sands and its application
Yao Lingkan Fang Duo.Study on the self organized criticality of non\|uniform\=sands and its application[J].Journal of Hydraulic Engineering,1997(3):26-32.
Authors:Yao Lingkan Fang Duo
Abstract:From the view point of self organized criticality, this paper investigates an essential distinction between non uniform sands and uniform sands. First, the concept of self organized criticality is introduced. Then, the process of flume experiment is described, from which the possibility of non\|uniform sediment in water being a self organized critical system is demonstrated. Finally, based on the scaling law the critical area ratio of covered river bed to form a stable armoring layer is deduced with renormalization group theory.\=
Keywords:non uniform sands  self organized criticality  renormalization group  river bed armoring layer  
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