泄流的压力脉动及其概化设计  

Release Pressure Fluctuation and Its Conceptual Design

作　　者：孙小鹏[1] 薛盘珍[1] 吕家才[1] 

机构地区：[1]河海大学水科所,南京210098

出　　处：《水动力学研究与进展（A辑）》1997年第1期102-112,共11页Chinese Journal of Hydrodynamics

摘　　要：泄流脉动压力的谱密度可以分为四种基本类型,每种类型都与水流的内部流动结构和流态有关,并存在着大致的对应关系。同类泄水建筑物在类似泄水条件下的压力脉动特性存在统计规律性。本文根据大量原型观测资料归纳分析了十种常见泄流条件下的水流脉动压力特性,并为有效地分析研究压力脉动的各种效应,提出了压力脉动概化设计的新思想和具体方法。The Spectrum density of the release pulsatory pressure may be devided into 4 basic types. One of each type all relates to the internal flow structure and flow condition and there are some approximate correspondent relations among them. The pressure fluctuation characteristics for the same type release work under similar release condition have the statistic regularity. Based on numerous prototype observation data the prototype pulsatory pressure characteristics for 10 common release conditions are analyzed in this paper. In order to analyze and investigate various effects of the pressure fluctuation conveniently and effectively this paper also presents a new idea and concrete method of the conceptual design for the release pressure fluctuations.

关 键 词：泄流脉动压力 概化设计 水工建筑 压力脉动 

分 类 号：TV131.33[水利工程—水力学及河流动力学]