摘要
混药器是农药在线混合时能够使农药均匀到达目标的关键部件,对混药器内部流场进行具体分析以及动态显示,有助于混药器设计合理的混药器结构。该文在研究混药器混合机理的基础上,设计了4种不同结构形式的混药器,利用CFD软件,对其内部流场进行了数值模拟并对其进行了分析,发现吸药口在喉管后的混药器结构其吸药性能最好,通过试验,进一步证实了仿真结果的可靠性。
Mixers play a critical role in direct injection systems,ensuring the uniformity of the distribution in target areas of pesticide deposition.In order to determine the optimal design of a mixer,computational fluid dynamics（CFD）simulations were run on 4 variations of geometry model.The internal flow fields of the mixers were studied and compared by the CFD software,and the result showed that the design of the pipette in the back of the throat was the best.The result of verification tests with these 4 types of mixers on an in-house-made direct injection test bed well coincides with that of the simulation.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2010年第5期148-152,I0004,共6页
Transactions of the Chinese Society of Agricultural Engineering
基金
National High-tech Research and Development Program (863 Program) (2008AA100904)
Jiangsu International Science and Technological Cooperation Project(Project No.BZ2007013)
The National 948 Project(Project No.2007-4-20)
Science and Technology Support Project of National Eleventh Five-Year Plan(2006BAD08A1203)
关键词
农业机械
农药
计算流体力学
流场
混药器
仿真
agricultural machinery
agricultural chemicals
computational fluid dynamics（CFD）
flow fields
mixer
simulation
