| 气流辅助式喷雾工况参数对雾滴飘移特性的影响 |
| |
| 引用本文： | 刘雪美,苑进,张晓辉,左文龙.气流辅助式喷雾工况参数对雾滴飘移特性的影响[J].农业机械学报,2012,43(Z1):67-72. |
| |
| 作者姓名： | 刘雪美 苑进 张晓辉 左文龙 |
| |
| 作者单位： | 1. 山东农业大学机械与电子工程学院,泰安271018;山东省园艺与装备重点实验室,泰安271018
2. 山东农业大学机械与电子工程学院,泰安,271018 |
| |
| 基金项目： | 国家自然科学基金资助项目 (31101461);山东省自然科学基金资助项目 (ZR2011CQ021);山东省高等学校科技计划资助项目 (J11LC27);国家农业智能装备工程技术研究中心开放课题资助项目(KFZN2012W09—009) |
| |
| 摘 要： | 采用三维流场的多相流计算流体力学模型,研究雾滴在自然风影响、辅助气流胁迫和自身重力作用下在连续相和雾滴粒子群离散相耦合的交互作用,并分析了不同工况参数对雾滴漂移特性的影响.结果表明:增大风筒气流出口速度,可以胁迫雾滴向靶标运动,减少雾滴飘失率.当喷嘴流量较小时,雾滴飘失率变小的趋势最为明显.然而喷嘴流量过大时,雾滴整体抗飘失能力显著下降.辅助气流的喷雾角对减少雾滴飘失相对于自然风速、辅助气流风速没有显著的影响.
|
| 关 键 词： | 喷杆喷雾 气流辅助喷雾 减飘 CFD 工况参数 |
Effect of Air-assisted Spraying Condition Parameters on Boom Spray Drift Characteristics |
| |
| Liu Xuemei,Yuan Jin,Zhang Xiaohui and Zuo Wenlong.Effect of Air-assisted Spraying Condition Parameters on Boom Spray Drift Characteristics[J].Transactions of the Chinese Society of Agricultural Machinery,2012,43(Z1):67-72. |
| |
| Authors: | Liu Xuemei Yuan Jin Zhang Xiaohui and Zuo Wenlong |
| |
| Affiliation: | Shandong Agricultural University;Shandong Provincial Key Laboratory of Horticultural Machineries and Equipments;Shandong Agricultural University;Shandong Provincial Key Laboratory of Horticultural Machineries and Equipments;Shandong Agricultural University;Shandong Provincial Key Laboratory of Horticultural Machineries and Equipments;Shandong Agricultural University |
| |
| Abstract: | A 3-D multiphase computational fluid dynamics model was used to study the coupling interaction of the natural wind, the air curtain and discrete droplets in the boom sprayer application and analyze the characteristics of air-assisted spray condition parameters on the boom spraying drift. The analytic results showed that increased outlet velocity of the air-assisted flow stressed droplet movement to target and then decreased the droplet deposition rate. Small nozzle flow rate implicated obvious loss trend of droplet drift. However, when the nozzle flow was excessive, the anti-drift loss of capacity of droplets decreased significantly. Air-assisted blowing angle had no significant impact on the drift reduction. |
| |
| Keywords: | Boom sprayer Air-assisted spraying Drift reducing Computational fluid dynamics Working condition parameters |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《农业机械学报》浏览原始摘要信息 |
|
点击此处可从《农业机械学报》下载全文 |
