转杯纺纱通道内气体三维流动的数值分析  

Numerical analysis of 3-D air flow in rotor spinning channel

作　　者：武传宇[1] 杨西伟[1] 陈洪立[1] 胡旭东[1] 徐世福[1] 

机构地区：[1]浙江理工大学机械与自动控制学院,浙江杭州310018

出　　处：《纺织学报》2012年第3期124-128,共5页Journal of Textile Research

基　　金：国家科技支撑计划项目(2009BAF39B01);浙江省自然科学基金重大项目(D1080780);浙江省科技厅重点项目(2010C11044)

摘　　要：为研究转杯纺成纱机制,需要对纺纱通道内气体流场加以分析,应用FLUENT流体计算软件对纺纱通道内气体流场进行模拟研究。模拟结果揭示了纺纱通道内的气流特征:转杯内部存在负压,在纤维输送管道出口处负压值最小;纤维输送管道出口处的凝聚槽受到较大压力,致使转杯受力不平衡;气流在纤维输送管出口处流速最大,进入转杯后形成涡流,且沿转杯转向气流速度逐渐减小;气流随转杯转向流过大约90°时,开始流向转杯口,并且有产生回流趋势;滑移面角度大于27°后,流场特征发生明显消极变化,故滑移面角度大于27°的滑移面设计不宜采用。To further learn the mechanism of yarn formation of rotor spinning,the air flow field in spinning channel should be analyzed.The air flow field in spinning channel was studied by FLUENT software,and the simulation results reveal the airflow characteristics in rotor spinning channel as： there is negative pressure in the rotor and the value existed in the exit of fiber pipeline is minimum;great pressure is focused on the accumulation groove near the exit of fiber pipeline,causing the unbalanced force on the rotor;the airflow speed in the exit of fiber pipeline is higher than others,and after entering rotor the vortex is produced and the speed decreases gradually along the rotor;the airflow along the rotor flows towards the exit of rotor after about 90° rotation and the trend of backflow is generalized;and when the degree of the slip plane is larger than 27°,the airflow characteristic alters negatively,which proves that the degree of the slip plane should not be designed to be over or equal to 27°.

关 键 词：转杯纺 气流特征 FLUENT 数值模拟 

分 类 号：TH311[机械工程—机械制造及自动化]