航空兵器Issue(2)：66-70,5.DOI:10.19297/j.cnki.41-1228/tj.2016.02.013
机载火焰抑制器传热特性影响因素研究
Effect Factors on Heat Transfer Characteristics of Airborne Flame Arrester
摘要
Abstract
The mathematical model of the airborne flame arrester in burning resistant process is set up by infinitesimal method, and the finite difference method is used for numerical calculation.The com-parison between calculating results and experimental data displays that the deviation is within 10%.On this basis, the influences of burning temperature, flame arrester element length, thickness and thermal conductivity of material on heat transfer characteristic of flame arrester are analyzed.The study shows that the terminal temperature of flame arrester element rises with the increase of flame temperature.The length of flame arrester element is longer, the terminal equilibrium temperature is lower, and the burning resist-ant performance is better.The increase of thickness of flame arrester element causes the increase of termi-nal equilibrium temperature, and the burning resistant performance declines. The materials thermal con-ductivity of flame arrester element is better, the terminal equilibrium temperature is higher, and the time to reach balance is shorter.In terms of burning resistant performance, improving the thermal conductivity of material is unfavorable.关键词
机载火焰抑制器/耐烧性能/传热特性/影响因素Key words
airborne flame arrester/burning resistant performance/heat transfer characteristic/in-fluence factor分类
航空航天引用本文复制引用
李征宇,刘卫华,潘俊,刘文怡,冯诗愚..机载火焰抑制器传热特性影响因素研究[J].航空兵器,2016,(2):66-70,5.基金项目
航空科学基金项目（20132852040）；中航工业技术创新基金项目 （）
