多层高温作业防护服的导热模型及设计算法  

Heat conduction model and design algorithm of multilayer protective clothing for high temperature operation

作　　者：梁毅 梁红 LIANG Yi;LIANG Hong(School of Mathematical Sciences,Tongji University,Shanghai 200092,China;School of Materials Science and Engineering/Herbert Gleiter Institute,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]同济大学数学科学学院,上海200092 [2]南京理工大学材料科学与工程学院/格莱特研究院,江苏南京210094

出　　处：《河南工程学院学报（自然科学版）》2023年第1期6-10,43,共6页Journal of Henan University of Engineering：Natural Science Edition

基　　金：国家自然科学基金(12171366)。

摘　　要：针对高温作业防护服的设计问题,建立了基于傅里叶定律的“外界环境—材料层—空气层—人体皮肤”的非稳态导热模型,给出了适当的初始条件和边界条件,并采用有限差分格式进行离散求解,计算出了高温作业防护服在给定的工作环境条件下,温度的空间分布和时间变化情况。现有的实验数据验证了该模型的有效性。在此基础上,根据二分法完成了热防护服的最优厚度设计,为高温作业防护服的设计提供了合理建议。Aiming at the design problem of protective clothing for high temperature operation,an unsteady heat conduction model of"external environment,material layer,air layer,human skin"based on Fourier′s Law is established.Initial conditions and boundary conditions are given properly.Finite difference method is used to discrete and solve the problem.The temporal variation and spatial distribution of the temperatures in the thermal protective clothing under a given working environment are analyzed.The effectiveness of the model is verified by existing experimental data.On this basis,the optimal thickness design of the thermal protective clothing is calculated with the idea of dichotomy method,so as to provide some reasonable suggestions on design of protective clothing for high temperature operation.

关 键 词：多层高温作业防护服 非稳态导热 有限差分法 二分法 

分 类 号：TS941[轻工技术与工程—服装设计与工程]