农业机械学报2013，Vol.44Issue(2)：69-74,6.DOI:10.6041/j.issn.1000-1298.2013.02.014
温室轨道式弥雾机气流速度场三维模拟与试验
3-D Numerical Simulation and Experiment of Air-velocity Distribution of Greenhouse Air-assisted Sprayer
摘要
Abstract
An air-velocity distribution model of greenhouse air-assisted sprayer was built by means of CFD simulation technique. Experiments were designed for the evaluation of the simulation results. The research showed that the air velocity decreased as the distance increasing from spray nozzle in vertical and horizontal directions. The change of air flow rate at nozzle had no remarkable influence on the characteristic of air-velocity distribution, but enlarged the droplet distribution area significantly. By increasing the nozzle flow rate from 25 m/s to 50 m/s, the blowing distance could be increased from 2. 4 m to 3. 6 m, the range of air-velocity distribution expanded from 0.20 m to 0.25 m. The contrast of experiment results and simulation results showed that the simulation model built can be an accurate simulation of the air-velocity distribution of a greenhouse air-assisted sprayer.关键词
弥雾机/温室/喷雾/计算流体动力学/三维模拟/气流速度场Key words
Air-assisted sprayer Greenhouse Spray CFD 3-D simulation Air-velocity distribution分类
农业科技引用本文复制引用
祁力钧,王虎,张建华,冀荣华,王俊..温室轨道式弥雾机气流速度场三维模拟与试验[J].农业机械学报,2013,44(2):69-74,6.基金项目
农业部行业科技专项资助项目(201203025)和中国农业大学研究生创业专项资助项目(2012YJ099) （201203025）
