反向流动中圆射流流动特性试验

华明; 唐洪武; 王惠民

引用本文:	华明,唐洪武,王惠民.反向流动中圆射流流动特性试验[J].水利水运工程学报,2001,(4):33-36

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反向流动中圆射流流动特性试验
华明¹,唐洪武²,王惠民¹
1. 河海大学水文水资源及环境学院,江苏,南京,210098 2. 河海大学水利水电工程学院,江苏,南京,210098

摘要:

利用超声多普勒流速仪（ADV）对反向流动中圆射流流动特性进行了试验，获得了该射流的横断面流速分布、射流扩展宽度和轴线流速沿程变化，以及横断面紊动强度、流速分布的偏差系数等紊动特性。

关键词: 紊动特性圆射流反向流动 ADV流速仪流动特性试验

DOI：

分类号:O357.5 O358

基金项目:国家自然科学基金资助项目(59779021)

Experiment of velocity field of a round jet in counter-flowing ambience

HUA Ming,TANG Hong wu,WANG Hui min

Abstract:

The flowing characteristics of a round turbulent jet in counter flowing ambientce are studied by using Acoustic Doppler Velocimeter (ADV) measurement techniques. Several mean characteristics such as the distribution of velocity in a section,jet width,decay of centerline velocity,and turbulence characteristics including turbulence intensity and skewness of velocity distribution are obtained.

Key words: turbulence characteristics,round turbulent jet,counter flowing ambience,ADV measurement techniques