|本期目录/Table of Contents|

[1]代文杰,邱华,杨恩惠,等.基于ANSYS CFX的织物透气性数值计算[J].丝绸,2018,55(9):000051-56.
 DAI Wenjie,QIU Hua,YANG Enhui,et al.Numerical calculation of fabric air permeability based on ANSYS CFX[J].Journal of Silk,2018,55(9):000051-56.
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基于ANSYS CFX的织物透气性数值计算(PDF)
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《丝绸》[ISSN:1001-7003/CN:33-1122/TS]

卷:
55
期数:
2018年9期
页码:
000051-56
栏目:
研究与技术
出版日期:
2018-09-20

文章信息/Info

Title:
Numerical calculation of fabric air permeability based on ANSYS CFX
文章编号:
1001-7003(2018)09-0051-06
作者:
代文杰 邱华 杨恩惠 王宁 闫正林
江南大学 生态纺织教育部重点实验室,江苏 无锡 214122
Author(s):
DAI Wenjie QIU Hua YANG Enhui WANG Ning YAN Zhenglin
Key Laboratory of EcoTextiles, Ministry of Education, Jiangnan University, Wuxi 214122, China
关键词:
织物模型布尔运算ANSYS网格有限元
Keywords:
fabric model Boolean operation ANSYS grid finite element
分类号:
TS101.1
doi:
-
文献标志码:
A
摘要:
为了快速设计出透气性符合实际要求的织物,并研究气流在织物内部的运动和压力、压强的变化规律,文章提出了利用ANSYS CFX对织物透气性进行数值计算的方法。首先建立织物模型,再在此基础上对织物模型进行处理,然后对不同压强下的织物进行数值计算。结果表明:气流主要通过织物孔隙和纱线之间的间隙,并且通过孔隙时由于迁移加速度的存在速度会增加;通过空隙时在纱线表面会存在很大的剪切力和压力;模拟值与实验值进行比较得到的模拟误差小于16%,所以得到的模型可以反映织物的实际特征。造成误差的主要原因包括:测试偶然误差、模型参数误差、边界条件与测试条件之间的差别。
Abstract:
In order to rapidly design fabrics whose air permeability meets the actual requirements, and study the changing rules of movement, pressure and pressure intensity of air flow inside the fabric, a method was proposed to numerically calculate the air permeability of fabric by using ANSYS CFX. Firstly, the fabric model was established and processed. Then, the fabrics are numerically calculated under different pressure intensity. The results show that the airflow mainly passed through the gap between the fabric pores and the yarn, and the speed would increases due to the migration acceleration when passing through the pores. There is large shear force and pressure on the yarn surface when passing through the voids. The simulation error obtained by comparing the simulation value with the experimental values was less than 16%, so the model can reflect the actual characteristics of the fabric. The main causes of errors include: accidental errors of test, model parameter errors, and differences between boundary conditions and test conditions.

参考文献/References:

[1]姚穆, 施楣梧, 蒋素婵. 织物湿传导理论与实际的研究 第一报: 织物的湿传导过程与结构的研究[J]. 西北纺织工学院学报, 2001,15(2): 14.
YAO Mu, SHI Meiwu, JIANG Suchan. The research on the theory and practice of wet permeability of fabrics Ⅰ: research on the wet permeability process and fabric structure [J]. Journal of Northwest Institute of Textile Science and Technology, 2001,15(2): 14.
[2]姚穆, 施楣梧. 织物湿传导理论与实际的研究 第二报: 织物湿传导理论方程的研究[J]. 西北纺织工学院学报, 2001,15(2): 9-14.
YAO Mu, SHI Meiwu. The research on the theory and practice of wet permeability of fabrics Ⅱ: theoretical equations of wet permeability of fabrics [J]. Journal of Northwest Institute  of Textile Science and Technology, 2001,15(2): 9-14.
[3]CHUANG C J. CFD analysis on fluid flow through multifilament woven filter cloths [J]. Separation Science & Technology, 2002, 37(4): 799-821.
[4]JAGANATHAN S, TAFRESHI H V, POURDEYHIMI B. A realistic approach for modeling permeability of fibrous media: 3D imaging coupled with CFD simulation [J]. Chemical Engineering Science, 2008, 63(1): 244-252.
[5]陈晓东, 周云成, 王德鹏. 叠层织物透气性的宏观流体分析[J]. 毛纺科技, 2016,44(5):5-8.
CHEN Xiaodong, ZHOU Yuncheng, WANG Depeng. Analysis of the laminated fabric air permeability using macroscopic fluid method [J]. Wool Textile Journal, 2016,44(5):5-8.
[6]XIAO X L, HU J L, HUA T, et al. Throughthickness air permeability of woven fabric under low pressure compression [J]. Textile Research Journal, 2015, 85(16):1632-1635.
[7]XIAO X L, LONG A, QIAN K, et al. Throughthickness permeability of woven fabric under increasing air pressure: theoretical framework and simulation [J]. Textile Research Journal, 2017, 87(13): 1631-1642.
[8]史永高. 基于粒子系统的三维纱线及织物模拟[D]. 杭州: 浙江理工大学, 2015: 5-6.
SHI Yonggao. 3D Yarn and Fabric Simulation Based on Particle System [D]. Hangzhou: Zhejiang SciTech University, 2015: 5-6.

备注/Memo

备注/Memo:
收稿日期: 2017-12-19
修回日期: 2018-06-28
基金项目: 江苏省产学研项目(BY201602214);江南大学创新计划项目(2017234Y)
作者简介: 代文杰(1991-),男,硕士研究生,研究方向为织物在流体中的数值计算和受力分析
通信作者:邱华,教授,qiuhua@jiangnan.edu.cn
更新日期/Last Update: 2018-10-08