摘要
为突破传统实验手段与一维数学模型的局限,一些研究者提出基于计算流体力学模拟人体-服装-环境系统的热量流动与传递过程,通过计算皮肤温度、传热系数等参数的方式评价服装的传热性能。文章概述了仿真方法解决服装传热问题的流程,揭示服装及人体几何模型建立、计算模型与边界条件设定的关键;从着装人体、服装结构、防护服装功能角度回顾了传热问题的国内外研究进展;总结了常用人体热生理模型的特征,介绍了热调节-CFD耦合系统在服装传热性能评价中的应用。现有模拟方法依然存在难以完全还原纺织材料、衣下空间分布、人体热反应等真实特性的问题,建议将动网格、用户自定义函数、数值模型耦合系统等作为深入研究方向,提高仿真评价的准确性。
To break down the limitations of traditional experimental means and one-dimensional mathematical models,some researchers proposed to simulate the process of heat and flow transfer in human-clothing-environment system based on computational fluid dynamics.Through the calculation of skin temperature,heat transfer coefficient and other parameters,the heat transfer properties of clothing can be evaluated.This paper summarizes the procedure of simulation to solve clothing heat transfer issues,reveals key points on establishing geometries of clothing and human body,calculating models and setting boundary conditions;reviews the progress of heat transfer research at home and abroad from the perspectives of human body,clothing structure,and protective clothing functions;concludes the characteristics of common human thermal physiological models,and introduces how to construct thermal regulation-CFD coupling system in the evaluation.It is found that existing simulation methods are still difficult to completely restore the real characteristics of textile materials,clothing space distribution,and human thermal reaction.Finally,this paper proposes recommendations of conduct in-depth research on dynamic grids,user-defined functions,and numerical model coupling systems so as to enhance the accuracy of simulation evaluation.
作者
陈慧臻
戴宏钦
潘姝雯
胡珏
陈曦
CHEN Huizhen;DAI Hongqin;PAN Shuwen;HU Jue;CHEN Xi(College of Textile and Clothing Engineering,Soochow University,Suzhou 215123,China;National Engineering Laboratory forModern Silk,Soochow University,Suzhou 215123,China)
出处
《现代纺织技术》
北大核心
2022年第2期18-26,共9页
Advanced Textile Technology
关键词
计算流体力学(CFD)
服装
热传递
热生理
耦合系统
computational fluid dynamics(CFD)
clothing
heat transfer
thermophysiology
coupling system
