摘要
本文据实验和相关分析的方法,研究了孔板式压力消能工的管道(隧洞)壁压脉动特性.给出了消能室壁压脉动的纵向和环向分布规律;论证了“冻结假定”在消能室内紊动流场中的适用性;提出了“点”一“面”脉动壁压强度关系和谱转换方法.
The characteristics of pressure fluctuation on the wall of multi-orifice tube are investigated by using experimental method and jcorrelation analysis. The pressure fluctuation distributions along longitudinal as well as circular directions are presented. The 'frozen assumption' is proved to be applicable to the turbulent field in the tube of orifice energy-dissi-pator, and methods are proposed to transform pressure intensity and fluctuation on small area in to those on large area on the wall.
出处
《水利学报》
EI
CSCD
北大核心
1990年第9期1-10,共10页
Journal of Hydraulic Engineering
基金
国家自然科学基金
