ADV技术测量圆射流流场紊动特性实验

华明; 唐洪武; 王惠民; 王志良

引用本文:	华明,唐洪武,王惠民,王志良.ADV技术测量圆射流流场紊动特性实验[J].水利水运工程学报,2000,(3):18-21

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ADV技术测量圆射流流场紊动特性实验
华明¹,唐洪武²,王惠民²,王志良¹
1. 河海大学,水文水资源及环境学院 2. 河海大学,水利水电工程学院,江苏,南京,210098

摘要:

利用 ADV(Acoustic Doppler Velocimeter)技术对静止环境条件下圆射流流场紊动特性进行了研究 .通过专门的 Win ADV系统分析软件获得了射流横断面上流速的紊动强度、偏斜度、平坦度及雷诺应力的分布 ,轴线流速紊动强度的变化和射流瞬时速度变化等紊动特性 ,并将所得成果与已有的国内外成果进行了比较

关键词: 射流流场,紊动特性,ADV技术

DOI：

分类号:TV13

基金项目:国家自然科学基金资助项目! (597790 2 1 )

Investigation of turbulent characteristics of velocity field of a round jet using ADV measurement techniques

HUA Ming¹,TANG Hong-wu²,WANG Hui-min²,WANG Zhi-liang¹

Abstract:

By using ADV (Acoustic Doppler Velocimeter) measurement techniques, the turbulent characteristics of a round jet in stagnant surroundings are studied in this paper. Through the special analyzing WinADV software, several characteristics are acquired, such as the profiles of turbulence intensity , skewness, kurtosis and Reynolds stress, as well as the variation of the instantaneous velocity and of turbulence intensity on axis. Furthermore, all the results are compared with other relative results at home and abroad.

Key words: velocity field of turbulent jet,turbulent characteristics,ADV measurement techniques