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.
Liu Xuemei,Yuan Jin,Zhang Xiaohui,Zuo Wenlong.Effect of Air-assisted Spraying Condition Parameters on Boom Spray Drift Characteristics[J].Transactions of the Chinese Society for Agricultural Machinery,2012,43(Z1):67-72.
摘要点击次数: 3225
全文下载次数: 1628
气流辅助式喷雾工况参数对雾滴飘移特性的影响   [下载全文]
Effect of Air-assisted Spraying Condition Parameters on Boom Spray Drift Characteristics   [Download Pdf][in English]
  
DOI:10.6041/j.issn.1000-1298.2012.S0.014
中文关键词:  喷杆喷雾  气流辅助喷雾  减飘  CFD  工况参数
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)
作者单位
刘雪美 山东农业大学
山东省园艺与装备重点实验室 
苑进 山东农业大学
山东省园艺与装备重点实验室 
张晓辉 山东农业大学
山东省园艺与装备重点实验室 
左文龙 山东农业大学 
中文摘要: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。
Liu Xuemei  Yuan Jin  Zhang Xiaohui  Zuo Wenlong
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
Key Words:Boom sprayer  Air-assisted spraying  Drift reducing  Computational fluid dynamics  Working condition parameters
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.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

   下载PDF阅读器