振动格栅紊流及其应用综述  

Review on study of vibrating grid turbulence and its application

作　　者：闫静[1] 唐洪武[1] 程年生[1] 周宜林[1] 

机构地区：[1]河海大学水利水电工程学院,江苏南京210098

出　　处：《水利学报》2005年第12期1503-1509,1516,共8页Journal of Hydraulic Engineering

基　　金：新世纪优秀人才支持计划(NCET-04-0494);国家自然科学基金(50479068)

摘　　要：振动格栅紊流是一种无平均流动的特殊紊流,在一定范围内呈各向同性。这类紊流具有许多不同于明渠水流的特点,易于人工控制,可以研究与环境工程有关的水力学问题。本文回顾了近期振动格栅紊流及应用的主要研究成果,包括紊流结构的研究、无平均流动的紊流条件下泥沙运动规律、气-液、固-液交界面处的质量转移等,侧重于介绍重要的实验结论及量测手段。针对前人研究的不足,提出了进一步的研究方法,并对振动格栅紊流的研究趋势进行了讨论。Turbulence generated by vibrating grid is a kind of special turbulence, without mean flow and being isotropic in certain region. The turbulence can be easily controlled and is suitable for studying hydraulic problems involved in environmental engineering. This paper reviews the main research achievements of vibrating grid turbulence obtained recently and their applications. The main aspects of research are ： 1. characteristics of turbulence structure; 2. sediment transport in zero mean flow; 3. mass transfer at the interface of air-fluid, solid-fluid or two fluid layers with different densities. The main conclusion and measurement methods are presented. Some new methods and research tendencies are also mentioned.

关 键 词：振动格栅紊流 无平均流动 各向同性 研究综述 

分 类 号：TV131[水利工程—水力学及河流动力学]