摘要
在阐述水流脉动压力基本理论的基础上，对含沙掺气高速水流的脉动压力进行了试验．研究了水、气、沙三相流体的压力脉动特性．探讨了掺气、含沙量等参数对水流压力脉动幅值特性、频率特性的影响．
The fundamental theory for the pressure fluctuation is described and the wall pressure fluctuation in high velocity sediment laden and aerated flow is measured.Based on the experimental data,an investigation is made on the characteristics of pressure fluctuations in the three phase flow of water,air and sand.The effects of air concentration and sediment content on the amplitude and frequency of pressure fluctuations are discussed.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
1997年第5期78-83,共6页
Journal of Hohai University(Natural Sciences)
基金
国家自然科学基金
国家教委博士点基金
关键词
含砂水流
掺气
脉动压力
频谱分析
水流渗气
sediment laden flow
aeration
presure fluctuation
spectrum analysis
