用PIV测量含淹没刚性植物明渠水流流速场_吴福生.pdf

42 5 () Vol.42 No.5 2009 10 Engineering Journal of Wuhan University Oct.2009 :1671-8844(2009)05-0587-05 PIV 1, 2 1,2 3 4 吴福生 , 姜树海 , 邢　磊 , 杨雪林 (1., 　210029; 2., 　210029;3., 　213300;4., 　210029) :, 、、. , , ., ., PIV , . :(PIV);;; :TV 131　　　 A : Measurement of flow field with submerged rigid vegetation by PIV 1,2 1,2 3 4 WU Fusheng , JIANG Shuhai , XING Lei , YANG Xuelin (1.State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing 210029, China; 2.Nanjing Hydraulic Research Institute, Nanjing 210029, China; 3.Liyang, Jiangsu Guoxin Pu ped Storage Power Co pany Li ited, Liyang 213300, China; 4.Hohai University, Nanjing 210029, China) Abstract:The velocity distribution of open channel flow with vegetation is very co plex.The type of veg- etation, stiffness characteristics, as well as the vegetation height, etc.will affect the river flow velocity distribution.At present, containing channel flow velocity distribution of plant research are easured point by point over-current on the vertical section along the longitudinal flow velocity distribution, very few peo- ple do effective research on the whole open channel flow velocity with vegetation.In order to accurately grasp the whole velocity field distribution of open channel flow with vegetation is particularly i portant. This paper describes the use of odern eans of advanced test, using a standard particle i age veloci etry (PIV) easure ents with rigid sub erged vegetation along the water channel to the vertical plane of the distribution of velocity field, with