基于CFD的喷气织机辅助喷嘴流场分析

纺织学报 ›› 2012, Vol. 33 ›› Issue (7): 123-128.

基于CFD的喷气织机辅助喷嘴流场分析

谭保辉^1,2,冯志华^1,2,刘丁丁¹,唐银萍¹

1. 苏州大学机电工程学院
2. 苏州大学现代丝绸国家工程实验室

收稿日期:2011-07-19 修回日期:2012-02-09 出版日期:2012-07-15 发布日期:2012-07-02
通讯作者: 冯志华 E-mail:zhfeng@suda.edu.cn
基金资助:
江苏省“六大人才高峰”资助项目

Flow field analysis of auxiliary nozzle of an air-jet loom based on CFD

TAN Bao-Hui^1,2, FENG Zhi-Hua^1,2, LIU Ding-Ding,¹ TANG Yin-Ping¹

1. School of Mechanical and Electric Engineering, Soochow University
2. National Engineering Laboratory of Modern Silk, Soochow University

Received:2011-07-19 Revised:2012-02-09 Online:2012-07-15 Published:2012-07-02
Contact: FENG Zhi-Hua E-mail:zhfeng@suda.edu.cn

摘要/Abstract

摘要： 为了研究辅助喷嘴的流场性质，本文建立了喷气织机辅助喷嘴流场的三维模型，利用计算流体动力学(CFD)分析软件Fluent对辅助喷嘴流场的三维模型进行了数值模拟，得到了供气压力为0.28MPa条件下辅助喷嘴出口实际流速中心线上的速度分布曲线、压力分布曲线以及不同供气压力条件下辅助喷嘴出口的速度分布曲线。计算结果表明：供气压力为0.28MPa时，辅助喷嘴出口最大风速高达404m/s，在辅助喷嘴出口出现了负压区；随着供气压力的增加，辅助喷嘴出口风速逐渐增大，供气压力每增加0.1MPa，出口风速约增加50m/s。最后，通过与相关文献实验值的比较，证明了数值模拟方法和实验方法分析辅助喷嘴流场的一致性。

关键词: 喷气织机 , 辅助喷嘴 , CFD , Fluent , 流场

Abstract: In this paper，to analyze the characters of the flow field of the auxiliary nozzle，an analysis software Fluent based on Computational Fluid Dynamics(CFD) is used to investigate the three-dimensional flow field of an auxiliary nozzle of an air-jet loom. The flow velocity change along with the center line and the pressure change under 0.28MPa source supply pressure are systematically analyzed. Similarly，a detailed flow velocity distribution with different source supply pressures is also calculated. Results showed that the flow velocity at the nozzle exit is up to 404m/s when the supply pressure is 0.28MPa and there is a negative pressure region near the nozzle exit. Furthermore，numerical date indicate that the flow velocity at the nozzle exit will increase about 50m/s for each 0.1MPa increment of supply pressure. Finally，the comparison between the present numerical results and other investigators’ experimental results has been made and shows that the numerical results are in good agreement with the experimental ones.

Key words: air-jet loom , auxiliary nozzle , CFD , Fluent , flow field

中图分类号:

TS101.2

谭保辉, 冯志华, 刘丁丁, 唐银萍. 基于CFD的喷气织机辅助喷嘴流场分析[J]. 纺织学报, 2012, 33(7): 123-128.

TAN Bao-Hui, FENG Zhi-Hua, LIU Ding-Ding, TANG Yin-Ping. Flow field analysis of auxiliary nozzle of an air-jet loom based on CFD[J]. JOURNAL OF TEXTILE RESEARCH, 2012, 33(7): 123-128.

参考文献

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