农业机械学报2012，Vol.43Issue(12)：77-86,10.DOI:10.6041/j.issn.1000-1298.2012.12.015
超高地隙喷杆喷雾机风幕式防飘移技术研究
Anti-drift Technology of Super-high Clearance Boom Sprayer with Air-assisted System
摘要
Abstract
A droplet deposition and drift distribution model was established for super-high clearance boom sprayer with air-assisted system in accordance with the actual structure of sprayer. The CFD software ANSYS Fluent was used. The standard κ-ε turbulence model, discrete phase model and couple algorithm were adopted. The simulation test was designed to study the relationship of drift rate with its influencing factors. The functional relation of droplet drift rate with its influencing factors at different rotation speed of axial-flow fan was established and the accuracy of the simulation result was validated. The results showed that, the model was well fitted, and the parameters of air-assisted system can affect the drift significantly. These conditions include angle of air-assisted flow, nozzle horizontal position, natural wind velocity, rotation speed of axial-flow fan, interaction between angle of air-assisted flow and natural wind velocity, interaction between angle of air-assisted flow and rotation speed of axial-flow fan, interaction between nozzle horizontal position and natural wind velocity, interaction between rotation speed of axial-flow fan and natural wind velocity.关键词
喷杆喷雾机/气流辅助/超高地隙/飘移率/数值模拟Key words
Boom sprayer/ Air-assisted system/ Super-high clearance/ Drift rate/ Simulation分类
农业科技引用本文复制引用
张铁,杨学军,严荷荣,王俊,董祥..超高地隙喷杆喷雾机风幕式防飘移技术研究[J].农业机械学报,2012,43(12):77-86,10.基金项目
国家高技术研究发展计划(863计划)资助项目(2008AA100901)和国际科技合作计划资助项目(2010DFA71310) （863计划）
