双槽熔喷工艺中外沿长度对空气流场的影响

纺织学报 ›› 2015, Vol. 36 ›› Issue (04): 71-75.

双槽熔喷工艺中外沿长度对空气流场的影响

收稿日期:2014-04-23 修回日期:2014-11-21 出版日期:2015-04-15 发布日期:2015-04-20
通讯作者: 王新厚 E-mail:xhwang@dhu.edu.cn

Influence of outer length on air flow field in melt blowing with dual slots

Received:2014-04-23 Revised:2014-11-21 Online:2015-04-15 Published:2015-04-20
Contact: Xinhou Wang E-mail:xhwang@dhu.edu.cn

摘要/Abstract

摘要：

用数值方法研究了双槽熔喷工艺中外沿长度对空气流场特征的影响。首先，在双槽熔喷工艺模头的气槽外沿添加2片一定长度的附件，然后用数值方法对添有附件的双槽熔喷工艺的空气流场进行模拟计算；最后，分析了外沿长度对纺丝中心线上的空气速度、压力和温度分布影响。结果表明，随着外沿长度的增加，空气速度和压力最大值都减小，而空气温度最大值基本不变，速度和压力的衰减程度增加，而温度的衰减程度减小。

关键词: 数值法, 熔喷, 附件, 外沿长度, 空气流场

Abstract:

The influence of outer length on air flow field in melt blowing with dual slots was studied by numerical simulation. Firstly, two accessories with certain length were added to the outside of dual slots in the melt blowing die. Then, the air flow field of the melt blowing with dual slots added with the accessories was studied by numerical simulation. Finally, the influence of the outer length on the air velocity and pressure and temperature distribution on the spinning center line was anslyzed. The results showed that when the length was increased gradually, the maximum values of air velocity and pressure decreased, but that of the temperature remained unchanged substantially, and the decrease degree of air velocity and pressure increased, but that of air temperature decreased.

Key words: numerical simulation, melt blowing, accessory, outer length, air flow field

中图分类号:

TS174.1

辛三法王新厚胡守忠. 双槽熔喷工艺中外沿长度对空气流场的影响[J]. 纺织学报, 2015, 36(04): 71-75.

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