管系湍流噪声辐射研究方法进展  

Research Progress on Sound Radiation of Turbulence in Pipeline

作　　者：李再承[1] 侯国祥[1] 吴崇健[2] 

机构地区：[1]华中科技大学交通科学与工程学院,湖北武汉430074 [2]中国舰船研究设计中心,湖北武汉430064

出　　处：《中国舰船研究》2007年第1期34-38,共5页Chinese Journal of Ship Research

基　　金：国家自然科学基金资助项目(50209003);973国家重点基础研究发展计划资助项目(2002CB412300)

摘　　要：从湍流声辐射的相关理论出发,介绍Lighthill声学比拟理论以及该理论的研究进展,如含固体边界的Curle方程、Powell的涡声理论等。运用这些理论,对潜艇舱室管路系统工作时,管道内及水阀内流体湍动引起的湍流边界层噪声、涡激噪声等进行机理性分析,对管系流动噪声的主要声源(包括偶极子源与四极子源)进行探讨,并列举工程上常用的管路噪声控制方法。For studying the sound radiation of turbulence, the author introduced Lighthill acoustic analogy and the relative theories, such as Curle equation, Powell vortex sound theory etc.. These theories were used to study the mechanism of the turbulence boundary layer noise, vortex noise generated by turbulence in pipes and valves. The main noise containing double pole and quadrupole acoustic sources were studied in a nutshell. Some techniques and methods for controlling the flow noise commonly used in practice were porposed.

关 键 词：流噪声 湍流噪声辐射 Lighthill声比理论 涡声理论 波数—频率谱 传递函数 

分 类 号：U674.701[交通运输工程—船舶及航道工程]