西安科技大学学报2025，Vol.45Issue(5)：895-903,9.DOI:10.13800/j.cnki.xakjdxxb.2025.0506
热辐射环境中人体皮肤烧伤的CFD仿真模拟
Computational fluid dynamics simulation of human skin burns in thermal radiation environment
摘要
Abstract
To evaluate the thermal damage of firefighters in thermal radiation environments and ensure the safety of firefighters,CFD simulation of burn time was performed for both the whole-body and local segments.Firstly,a three-dimensional numerical manikin was established,and the ICEM software was used to divide the numerical manikin into multi-zones based on the physiological structure of the hu-man body.Secondly,to verify the validity of the simulation,the simulated cloth and skin temperature was compared with that in the literature.Thirdly,CFD simulation was conducted for two working condi-tions of dressed and undressed manikins to simulate heat flux,skin temperature and bum time.Finally,parameter analysis was made to quantify the effects of wind speed and garment thickness on skin tem-perature and skin burn.The results show that the proposed CFD simulation method could predict hu-man skin temperature reasonably and the relative error between the simulations and that in the litera-ture was less 8.6％.Parameter analysis indicated that wind speed had a greater effect on skin burn.When the wind speed increased from 0.2 m/s to 2.0 m/s,the proportion of second-degree skin burn for the undressed case was reduced from 100％to 9％at the end of the 4 s thermal exposure,and the rate of the heat flux change decreased by 15.35％.Furthermore,the second degree burn time varied with body segments,and that for the upper arm,calves,feet and thigh was less than that in the torso ar-ea.When the wind speed increased from 0.2 m/s to 2.5 m/s,the mean skin temperature of the dressed manikin decreased by 3.76 ℃.and the upper arms and calves were more affected by wind speeds.When the fabric thickness increased from 0.3 mm to 1.2 mm,the mean skin temperature of the dressed case decreased by 13.41％.Besides,the limbs were more affected by the fabric thickness,es-pecially the thighs and upper arms,which decreased by 30.2％and 29.8％,respectively.The research results can provide basic data for the prediction of thermal damage of the human body in thermal radia-tion environments,the evaluation of thermal protection performance,and the optimization of protective clothing fabric performance.关键词
个体防护/消防员/防护服/皮肤烧伤/CFD仿真模拟Key words
personal protection/firefighters/personal protective clothing/skin burn/CFD simulation分类
资源环境引用本文复制引用
杨杰,卢盈汝,张珊珊..热辐射环境中人体皮肤烧伤的CFD仿真模拟[J].西安科技大学学报,2025,45(5):895-903,9.基金项目
国家自然科学基金项目(52474248) （52474248）
"十四五"国家重点研发子课题项目(2022YFC300610502) （2022YFC300610502）
