基于Fluent的对射流混药管吸入室收缩半角研究  

Study on Contraction Half Angle of Suction Chamber of Jet Mixing Pipe Based on Fluent

作　　者：陈志刚 毛伟 王鹏程[2] 杜彦生 CHEN Zhi-gang;MAO Wei;WANG Peng-cheng;DU Yan-sheng(School of Environment and Safety Engineering,Jiangsu University;School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212000,China)

机构地区：[1]江苏大学环境与安全工程学院 [2]江苏大学电气信息工程学院,江苏镇江212000

出　　处：《软件导刊》2021年第5期62-66,共5页Software Guide

基　　金：江苏省农业科技支撑项目(BE2014415)。

摘　　要：为了观察改变混药管入口角度对混药比q、压力比h和混药效率η的影响,利用Solidworks建立射流混药管的三维模型,并在Fluent中进行仿真计算。将仿真得到的数据结果导入Origin中,对相关结果进行分析。试验结果表明,随着混药管入口角度的增加,混药比刚开始波动很大,100°以后则基本上不再变化;压力比刚开始急剧降低,100°以后基本趋于稳定,表明混药效率的变化曲线与压力比的变化曲线基本一致。根据低于最大混药效率的20%确定混药管入口角度区间,相应角度范围为30°~34.36°和86.05°~92.58°。In order to observe the influence of changing the inlet angle of the mixing tube on the mixing ratio q,pressure ratio H and mixing efficiency η,a 3-D model of the jet mixing tube is established by Solidworks and simulated in Fluent.The simulation results are imported into Origin and analyze the related results.The experimental results show that with the increase of the inlet angle of the mixing tube,the mixing ratio fluctuates greatly at the beginning,and basically does not change after 100°.The pressure ratio decreases sharply at first,and then fluctuates a few times,and tends to be stable after 100°.The curve of mixing efficiency is consistent with that of pressure ratio.The inlet angle range of the mixing tube is determined according to 20%lower than the maximum mixing efficiency,and the corresponding angle ranges are 30°to 34.36°and 86.05°to 92.58°.

关 键 词：射流混药管 FLUENT 入口角度 混药效率 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]