农机化研究2025，Vol.47Issue(7)：44-51,8.DOI:10.13427/j.issn.1003-188X.2025.07.006
基于CFD的喷播机搅拌影响因素研究及试验验证
Research and Experimental Verification of Mixing Factors of Sprayer Based on CFD
摘要
Abstract
Aiming at the problem of low survival rate of crop seeds caused by uneven mixing,the study on the distribu-tion of mud mixing flow field in the spray planter has a guiding role in solving the low survival rate of crops,and can pro-vide a theoretical basis for the optimal design of the mixing device in the spray planter.Stirring uniformity is an important index to measure the quality of a jet-seeding machine.Aiming at the stirring uniformity problem of a horizontal two-axis agitator,adopted the numerical simulation method of solid-liquid two-phase flow mixing model,and used Fluent software to study the effects of different stirring speeds,solid particle sizes and impeller installation angles on the flow field charac-teristics in the mixing chamber,and obtained the optimal parameters.The numerical simulation results showed that the stirring speed was 100 r/min,the particle size was 0.1 mm,and the impeller installation angle was 45°,and the stirring effect was good.The test results were compared with the simulation results,the maximum difference was less than 4%.After spraying,the plant coverage was uniform,and the coverage rate was 88.7%.关键词
喷播机/卧轴搅拌/固液两相流/数值模拟/流场特性Key words
sprayer/orizontal shaft agitation/solid-liquid two-phase flow/numerical simulation/flow field characteris-tic分类
农业科技引用本文复制引用
李鹏鹏,王泽河,弋景刚,黄海明..基于CFD的喷播机搅拌影响因素研究及试验验证[J].农机化研究,2025,47(7):44-51,8.基金项目
河北省重点研发项目(21327214D) （21327214D）
