| 结构参数设计对风筛式清选装置气流场的影响 |
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| 引用本文： | 周全,李耀明,李洪昌.结构参数设计对风筛式清选装置气流场的影响[J].农机化研究,2012(3):29-32. |
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| 作者姓名： | 周全 李耀明 李洪昌 |
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| 作者单位： | 江苏大学现代农业装备与技术省部共建教育部重点实验室 |
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| 基金项目： | 国家“863”计划项目(2010AA101402);国家自然科学基金项目(50875113) |
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| 摘 要： | 运用Gambit软件建立风筛式清选装置的二维几何模型,利用Fluent软件中的标准k-ε湍流模型和壁面函数法对清选室内部气流场分布进行了数值计算。对风机出风口风速、出风口角度、出风口相对于筛面的位置、筛子的结构参数、贯流风机与离心风机串联以及导流板的配置等各个不同工况进行了气流场数值模拟,分析了工况不同时,对清选室气流场分布的影响,并提出了改进方案。
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| 关 键 词： | 清选装置 风筛式 气流场 结构参数设计 |
Impact of the Main Structural Parameters on the Airflow Field the Air and Screen Cleaning Mechanism |
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| Zhou Quan,Li Yaoming,Li Hongchang.Impact of the Main Structural Parameters on the Airflow Field the Air and Screen Cleaning Mechanism[J].Journal of Agricultural Mechanization Research,2012(3):29-32. |
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| Authors: | Zhou Quan Li Yaoming Li Hongchang |
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| Institution: | (Modern Agricultural Equipment and Technology Key Laboratory of Ministry of Education,Jiangsu University,Zhenjiang 212013,China) |
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| Abstract: | 2-D geometry models of air-and-screen cleaning mechanism were built using Gambit.Take the viscosity of the real gas into account,the N-S equations,standard k-ε turbulence model and wall function were applied to calculate the airflow distribution based on the relative position from outlet to surface of screen,the structural parameters of the screen surface,cross flow fan and centrifugal fan series,spoiler configuration.Variable condition of the airflow was analyzed,and the improving method and suggestions were put forward. |
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| Keywords: | cleaning mechanism air and screen flow field structural design |
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