典型文献
Rapid velocity reduction and drift potential assessment of off-nozzle pesticide droplets
文献摘要：
The droplet velocity and diameter significantly affect both the spatial drift loss and the interfacial depo-sition behaviors,thus determining the ultimate utilization efficiency during pesticide spraying.Investigating the spatial velocity and diameter evolutions can reveal the mechanism of drift loss and guide to design regulation strategy.Here,we explored the spatial velocity distribution of droplets after leaving the nozzle by particle image velocimetry technology and particle tracking model,considering that the effect of nozzle configuration and the air velocity.It shows that all droplets decelerate rapidly with the velocity attenuation ratio ranging from 50％to 80％within the region of 200 mm below the nozzle.The spatial velocity evolution differences between droplets in crossflow are determined by the competi-tion of vertical drag force and net gravity,and the drag force sharply increases as the droplet diameter decreases,especially for that smaller than 150 μm.Based on the spatial evolution differences of the dro-plet velocity and diameter,a functional adjuvant was added to the liquid for improving the diameter dis-tribution.And the drift loss was significantly reduced due to the reduction of the proportion of easily drifting droplets.
文献关键词：
中图分类号：
作者姓名：
Shidong Xue;Jingkun Han;Xi Xi;Junyi Zhao;Zhong Lan;Rongfu Wen;Xuehu Ma
作者机构：
Liaoning Key Laboratory of Clean Utilization of Chemical Resources,Institute of Chemical Engineering,School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China
文献出处：
引用格式：
[1]Shidong Xue;Jingkun Han;Xi Xi;Junyi Zhao;Zhong Lan;Rongfu Wen;Xuehu Ma-.Rapid velocity reduction and drift potential assessment of off-nozzle pesticide droplets)[J].中国化学工程学报（英文版）,2022(06):243-254
A类：
decelerate,crossflow,dro
B类：
Rapid,velocity,reduction,potential,assessment,off,nozzle,pesticide,droplets,diameter,significantly,affect,both,spatial,loss,interfacial,depo,sition,behaviors,thus,determining,ultimate,utilization,efficiency,during,spraying,Investigating,evolutions,reveal,mechanism,guide,design,regulation,strategy,Here,explored,distribution,after,leaving,by,particle,image,velocimetry,technology,tracking,model,considering,that,effect,configuration,air,It,shows,rapidly,attenuation,ranging,from,within,region,below,differences,between,are,determined,competi,vertical,drag,force,net,gravity,sharply,increases,decreases,especially,smaller,than,Based,functional,adjuvant,was,added,liquid,improving,And,reduced,due,proportion,easily,drifting
AB值：
0.517533
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