治导建筑物绕流机理及其下游流场的探讨  

Study on Flow Mechanism Near Training Structures and Velocity Field Behind Training Structures

作　　者：陆永军[1] 周耀庭[2] 

机构地区：[1]交通部天津水运工程科学研究所 [2]河海大学

出　　处：《水动力学研究与进展（A辑）》1990年第2期23-31,共9页Chinese Journal of Hydrodynamics

摘　　要：本文分析了治导建筑物的统流机理,建立了二维流动模式。前人的研究及笔者的试验资料均表明,治导建筑物下游流速分布呈自相似性,根据相似原理,二维沿水深平均的Reynolds方程可转化为常微分方程,这样就得到治导建筑物下游流速分布式。宽浅明槽中的试验表明,该流速分布式的计算结果与实测值吻合。The flow mechanism near the training structure and the two-dimensional flow model are presented in this paper. The velocity distribution behind the training structure is found to be self-preserving in character. Hence, the Reynolds' equation is transformed into an ordinary differential equation by similarity consideration. The expression of velocity distribution behind the training structure is obtained. The calculated results of the distribution are in close agreement with measurements.

关 键 词：治导建筑物 绕流 REYNOLDS方程 

分 类 号：U617.91[交通运输工程—船舶及航道工程]