文献类型：期刊文献

英文题名：Numerical Prediction of the Heat Transfer in Air Gap of Different Garment Models

作者：Zhang, Yijie[1,2];Lyu, Yexin[1];Wu, Jinying[1];Li, Tao[1];Zou, Fengyuan[1,3]

机构：[1]Zhejiang Sci Tech Univ, Key Lab Silk Culture Inheriting & Prod Design Dig, Minist Culture & Tourism, Hangzhou, Zhejiang, Peoples R China;[2]Shaoxing Univ, Shangyu Coll, Shaoxing 312300, Zhejiang, Peoples R China;[3]Zhejiang Sci Tech Univ, Engn Res Ctr Clothing Zhejiang Prov, Hangzhou 310018, Zhejiang, Peoples R China

年份：0

外文期刊名：AUTEX RESEARCH JOURNAL

收录：SCI-EXPANDED(收录号：WOS:000795602200001)、、Scopus(收录号：2-s2.0-85166275310)、WOS

语种：英文

外文关键词：Garment; air gap; heat transfer; thermal comfort; numerical simulation

外文摘要：This study aims to investigate the characteristics of heat transfer and its mechanism for styling a design garment differently, and to improve thermal comfort caused by clothing styling design, a computational fluid dynamics (CFD) approach has been used to perform numerical investigations of fluid flow and heat transfer across a clothing air gap. Relationships between the heat transfer from the body to clothing (computed by heat transfer equations) and the air gap were examined by body heat loss of different styles of garments. Also, the clothing temperature distribution of different garments was obtained and compared. Computed results reveal that the air gap can play a central role in the heat transfer from the body to the surface of different style garments. When the air gap is small enough, namely about 5 mm in the chest and bust of the X-type of clothing, the conductive heat flux can transfer through the air gap and reach the cloth surface easily, which will bring about the increase of temperature on the clothing surface. The decreasing air gap distance from 50 mm (O-type) to 10 mm (X-type) increases the convective heat flux by up to 25% on the waist. However, the airspeed will increase to greater numbers while the air gap decreases to narrow channels, and it will bring about fierce forced convection heat flux. So the heat transfer must be considered in the process of garment design, and the air gap should be kept at a suitable level. These findings can be used to improve the clothing's thermal comfort or optimize the cloth structure.