分形理论在泥沙研究中的应用概述  

Application of fractal theory to sediment research

作　　者：周银军[1,2] 陈立[2] 刘同宦[1,2] 

机构地区：[1]长江科学院河流研究所,湖北武汉430010 [2]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072

出　　处：《泥沙研究》2012年第2期73-80,共8页Journal of Sediment Research

基　　金：国家自然科学基金项目(51109011);国家自然科学基金重点项目(10932012);长江科学院中央级公益性科研院所基本科研业务费资助项目(YWF09029)

摘　　要：论述了分形理论在泥沙研究中的应用,主要包括:泥沙颗粒物特性,群体泥沙组成及其沉积物排列方式,细颗粒泥沙絮凝体结构以及河流几何形态等;概括了当前在应用中的特点:促进学科交叉,形成新的研究领域;活跃传统思想,提供新的研究方法;同时指出值得注意的问题:分形算法的统一和规范,明确各研究对象分形维数物理意义并用于解决实际问题。This paper deals systematically with the application of fractal theory in many aspects of sediment research, including the characteristics of sediment grains, the aggregation and the arrangement of grains, flocculation of cohesive fine sediment, as well as the river geometry form. The characteristics which occur in the practice of the application of the fractal theory to sediment research are to accelerate connection of different Subjects to form a new research field and to supply new methods to traditional problems. Meanwhile, attention should be paid to some problems,such as unification and standardization of fractal calculation,making definite physial meaning of each fractal dimension and using it to solve some actual problems.

关 键 词：泥沙 分形理论 河流 

分 类 号：TV141[水利工程—水力学及河流动力学]