纺织学报 ›› 2014, Vol. 35 ›› Issue (12): 136-0.

• 管理与信息化 • 上一篇    下一篇

纺纱转杯内气流流动特性的数值分析

  

  • 收稿日期:2013-12-12 修回日期:2014-05-14 出版日期:2014-12-15 发布日期:2014-12-16
  • 通讯作者: 窦华书 E-mail:huashudou@yahoo.com

Numerical simulations of air flow behaviour in spinning rotor

  • Received:2013-12-12 Revised:2014-05-14 Online:2014-12-15 Published:2014-12-16

摘要: 针对转杯内气流流场比较复杂,转杯参数对流场特性的影响规律不明确的现状,本文对转杯纺纱机纺纱通道内的气流流动进行了数值模拟,分析了转速和几何参数对转杯内气流流动的影响。研究结果表明,随转速和几何参数改变,转杯内的流动结构会发生明显的变化,这是由旋转产生的中心低压区和纤维输送管出口处的另一低压区相互制衡的结果。当角速度为2000rad/s,且滑移角为22°时,子午面上漩涡结构的轴对称性最好,此时由气流造成的脉动及转杯的振动也最小。上述研究结果为转杯速度和转杯几何形状的选择提供了参考。

Abstract: Air flow in the spinning rotor is very complicated and the effect of rotor parameters on the flow behavior is not clear. Considering above status, simulations of air flow in the spinning rotor channel are done, and influences of rotor speed and geometric parameters on the air flow are analyzed. It is found from the results that flow structure in the spinning rotor changes significantly with the variations of rotor speed and geometric parameters. This is due to the balance of low pressure zone caused by rotation and another low pressure region in the export of fiber feeding tube. The axial symmetry of vortex structure in the rotor meridional plane is best while the angular velocity is 2000rad/s and slip angle is 22°. In this case, the pulsation and vibration caused by the air flow are smallest. The above research results provide with reference to the design of rotor spinning machines.

中图分类号: 

  • TS103.2
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