变态模型对水流运动相似的影响  

Influence of distorted model on flow kinematic similitude

作　　者：陈长植[1] 郑双凌[1] 马吉明[1] 

机构地区：[1]清华大学水沙科学与水利水电工程国家重点实验室,北京100084

出　　处：《水利水电技术》2007年第4期35-38,共4页Water Resources and Hydropower Engineering

基　　金：自然科学基金重点项目雅砻江基金资助(50539070)。

摘　　要：归纳了模型变态的三种主要方式,重点对垂直比尺与水平比尺不同(λ_h≠λ_l=λ_B)的方式进行了介绍,分析模型变态对水流运动相似的影响,推导建立了其变态模型比尺关系,并重点推导出了矩形、梯形断面河渠的糙率比尺关系式。Three modes of the distorted model are summarized herein with the emphases on the mode of the difference between the vertical scale and horizontal scale（ λh≠λl= λ B ）, and then the influence of distorted model on the flow kinematic similitude is analyzed with the deduction of the scale relation of the model, lastly, the scale relationship between the roughness of both the rectangle and the trapezoidal channels is emphatically deduced as well.

关 键 词：变态模型 模型设计 模型率 比尺 

分 类 号：TV131.61[水利工程—水力学及河流动力学]