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基于CFD的气流式皮清机内部流场

DOI: 10.3969/j.issn.1005-3026.2015.04.018, PP. 537-541

Keywords: 棉花,皮棉清理,速度场,压力场,计算流体力学

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Abstract:

利用基于CFD(computationalfluiddynamics)的数值分析方式,对进口风速、排杂槽口宽度等参数改变引起的气流式皮清机内部速度场和压力场变化进行了仿真分析.采用速度矢量分析了进口风速的影响:进口风速为15m/s时最佳,风速过低或者过高都易于引起堵塞;采用了压力云图及压力分布分析了排杂槽口宽度的影响:排杂槽口宽度为20mm,进口风速为15m/s时无向外排风现象,且向内补风风速最低,清杂及落棉的综合效果最佳.数值分析结果与试验验证结果相同,表明用CFD数值分析的方式可以为气流式皮清机的运行参数调节提供优化分析.

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