Bingham体的连续流和阵性流研究中无量纲参数讨论  

Discussion on the Dimensionless Parameters in the Investigation of Bingham-Fluid Continual and Intermittent Flow

作　　者：刘大有[1] 段新平[1] 章书成[2] 余斌[2] 

机构地区：[1]中国科学院力学研究所,北京100081 [2]中国科学院成都山地灾害与环境研究所,四川成都610041

出　　处：《泥沙研究》2001年第1期16-22,共7页Journal of Sediment Research

基　　金：国家自然科学基金! (497710 0 3 );中国科学院"特别支持领域-山地灾害-泥石流与滑坡"的资助

摘　　要：本文首先对轴对称管流、二维管流和明渠连续流研究中无量纲参数的选择进行评述 ,通过对这些有分析解的流动的讨论 ,说明采用无量纲表达式的优点、无量纲方法的多样性 ,以及适当选择基本量的重要性。In this paper, the comments about the selection of dimensionless parameters in the investigation of axisymmeteric and 2\|D pipe flow and continual open channel flow were given. The advantages of the dimensionless expressions, the diversity of the dimensionless method and the importance of the selection of the basic variables were demonstrated by the above flow which have analytical solution. The proper selection of the basic variables in the investigation of the intermittent flow of Bingham\|fluid was discussed at last.

关 键 词：无量纲参数 Bingham体 连续流 阵性流 屈服应力 阻力 

分 类 号：TV131[水利工程—水力学及河流动力学] O303[理学—力学]