分形理论在紊流与泥沙研究中的应用现状  

Application Actuality of Fractal Theory in Turbulence and Sediment Studies

作　　者：钟亮[1] 许光祥[1] 

机构地区：[1]重庆交通大学河海学院,重庆400074

出　　处：《重庆交通大学学报（自然科学版）》2008年第5期806-811,共6页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：交通部科技项目(200432981413);教育部博士点基金联合资助项目(20070618003)

摘　　要：紊流与泥沙问题是河流动力学的基本问题,也是水科学中的公认难题,传统的线性数学方法在解决这类强非线性问题时存在较大局限性。分形理论作为非线性科学的一个重要分支,为紊流和泥沙问题的研究提供了新的途径。基于国内外大量研究资料,系统论述了分形理论在紊流和泥沙问题中的应用现状,探讨了其应用前景。Turbulence and sediment problems are the basic topics of river dynamics, as well as the well-known hard-solved problems in hydroscience, for conventional linear mathematic methods have relatively more limitations in solving these nonlinear problems. Fractal theory as one of the most important nonlinear science branches provides a new approach to study turbulence and sediment. Based on a large number of research materials at home and abroad, the application actuality of factal theory in turbulence and sediment studies is illustrated systematically and its application prospect is explored.

关 键 词：分形理论 紊流 泥沙 应用现状 

分 类 号：TV131.2[水利工程—水力学及河流动力学] TV142.4