李洪昌,李耀明,唐忠,徐立章.风筛式清选装置振动筛上物料运动CFD-DEM数值模拟[J].农业机械学报,2012,43(2):79-84.
Li Hongchang,Li Yaoming,Tang Zhong,Xu Lizhang.Numerical Simulation of Material Motion on Vibrating Screen of Air-and-screen Cleaning Device Based on CFD-DEM[J].Transactions of the Chinese Society for Agricultural Machinery,2012,43(2):79-84.
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风筛式清选装置振动筛上物料运动CFD-DEM数值模拟   [下载全文]
Numerical Simulation of Material Motion on Vibrating Screen of Air-and-screen Cleaning Device Based on CFD-DEM   [Download Pdf][in English]
  
DOI:10.6041/j.issn.1000-1298.2012.02.017
中文关键词:  风筛式清选装置  振动筛  计算流体力学  离散元法  数值模拟
基金项目:国家自然科学基金资助项目(50875113、50805068)、国家高技术研究发展计划(863计划)资助项目(2010AA101402)、江苏大学研究生创新计划资助项目(CX09B_06XZ)和江苏省农业装备与智能化高技术研究重点实验室资助项目(BM2009703)
作者单位
李洪昌 江苏大学 
李耀明 江苏大学 
唐忠 江苏大学 
徐立章 江苏大学 
中文摘要:采用计算流体力学和颗粒离散元耦合的方法模拟风筛式清选装置中物料在筛面上的运动,并将模拟结果和试验结果进行了对比。仿真结果表明:在一定范围内风机出风口风速增加,物料后移速度增加,有助于提高振动筛的处理能力,但也会增加籽粒的损失;风速增加使籽粒在筛下分布后移,在15分区后籽粒数量很少。通过试验验证表明,利用CFD-DEM耦合对风筛式清选装置进行数值模拟是可行的。
Li Hongchang  Li Yaoming  Tang Zhong  Xu Lizhang
Jiangsu University;Jiangsu University;Jiangsu University;Jiangsu University
Key Words:Air-and-screen cleaning device, Vibrating screen, CFD, DEM, Numerical simulation
Abstract:The material motion on the screen surface of air-and-screen cleaning device was simulated by using CFD-DEM coupled method, and experimental results and simulation results were compared. Simulation results showed that with the increasing wind speed, vibrating screen processing power would improve in a certain range, while grain losses would increase. With the increasing wind speed, the grain passed through the screen surface and decreased after section 15.It showed that numerical simulation of material motion on vibrating screen of air-and-screen cleaning device based on CFD-DEM was feasible.

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.

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