摘要
与以往热分析中将织物看作匀质平板不同,本文提出了一种基于纱线交织结构模拟织物传热的方法。以玻璃纤维织物为例,首先基于纱线交织结构构建织物几何模型,然后利用有限元方法研究织物内温度场的分布。结果表明:基于纱线的交织路径和横截面形状,构建的玻璃纤维平纹、锻纹和方平织物模型与真实织物外观十分接近;基于织物的几何模型进行热分析时,可实现分别定义织物和空气部分的物理性能参数,不仅获得不同时刻织物受热面和截面的温度场分布规律,而且模拟结果与试验值比较接近。验证了用该方法进行织物三维热传递模拟是可行的、有效的,可为今后织物热传递的研究提供理论依据。
Previous thermal analysis are usually regarded the fabrics as a uniform plate.A numerical approach on heat transfer of fabric based on yarn interweaved structure was proposed.The glass fiber fabric was used as an example,firstly the fabric geometry model was developed based on the yarn structure;And then the temperature distribution through the fabric was studied by using a finite element method.The results showed that the plain,satin and gingham fabric models which were developed based on yarn path and section shape are closed to the fabric real structure.The physical property parameters of the fabric and the air can be defined respectively.The temperature distribution about fabric heating surface and cross section were obtained.The simulation results were correlated with the experimental ones.So the numerical approach on heat transfer of fabric is feasible and effective,which can provide the theoretical basis for the future research of fabric heat transfer analysis.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2016年第9期1918-1925,共8页
Journal of Engineering Thermophysics
基金
国家自然科学基金项目(No.51206122)
天津科委青年基金项目(No.13JCQNJC03000)
关键词
织物
几何模型
有限元法
热分析
fabric
geometric model
finite element method
thermal analysis
