摘要
细纱是纺纱生产的最后一道工序,其清洁系统性能的高低对纱线质量有着重要影响。针对吸棉笛管工作效率不足问题,基于计算流体动力方法(CFD),采用三维κ-ε湍流模型,利用Ansys Fluent软件对吸棉笛管内腔气流场进行了仿真计算。结果表明:现有吸棉笛管中x方向运动气流主要集中于靠近后壁面区域,通过吸口的气流垂直冲击壁面后造成较大的气流阻滞区域和气流涡流区域。采用不超过26°角度导流孔对气流场有一定的改善,增加了气流向中间尾管x方向分量速度,提高了流出尾管气流流量,减少了气流垂直冲击壁面造成的动能损失。
Fining yarn is the last process of spinning yarn.The performance of cleaning system plays a great role for yarn quality.For the low working efficiency of suction tube,Ansys Fluent software was used to conduct simulation of airflow field of cotton suction tube by computational fluid dynamics method(CFD)and 3 Dk-ε model.Results indicate that the movement of airflow in the x direction mainly concentrated near the rear wall area.The larger airflow blocking area and airflow swirl area were caused after the airflow through the suction vertically impacts the wall.When the diversion hole with the angle no greater than26°was applied,the airflow field was improved to certain degree,and xdirection component speed of air flow towards the middle tail tube was accelerated.In addition,outflow of tail air increased,and the kinetic energy loss caused by the vertical impact wall decreased.
作者
徐晔
韩冬桂
刘芳
燕怒
XU Ye;HAN Donggui;LIU Fang;YAN Nu(College of Mechanical Engineering and Automation,Wuhan Textile University,Wuhan 430073,China;Governmeut Key Laboratory of Digital Textile Equipwewt of Hubei Provice,Wuhan 430073,China)
出处
《现代纺织技术》
2018年第4期83-87,共5页
Advanced Textile Technology
基金
湖北省高等学校优秀中青年科技创新团队(T201607)
关键词
吸棉笛管
气流场
数值模拟
CFD
倾角
suction tube
airflow field
numerical simulation
CFD
angle of inclination