摘要
在详细考虑火焰场微观粒子动力学特性的基础上,基于运流电子运动方程,建立了火焰电导率数学模型.搭建了直流及低频交流电场条件下CH4扩散燃烧实验系统,通过测量直流及低频交流电场作用下扩散火焰伏安特性曲线及电阻率特性曲线,验证了直流及低频交流电场条件下火焰导电特性.同时探讨了电场作用下,CH4扩散火焰的形态和火焰伏安特性之间的内在联系,并从微观动力学角度阐述引起它们变化的原因.
The kinetic characteristics of particles in a flame were considered. The motion equation of energetic electron was established and the mathematical model of flame conductivity derived. At the same time,CH4 diffusion combustion experiments under DC and low-frequency AC electric fields were carried out separately and the voltagecurrent characteristic curve and the resistance characteristics curve were obtained,which verify the mathematical model of flame conductivity brought forward in this study. Furthermore,the relationship between the morphology of CH4 diffusion flame and the voltage-current characteristics was explored and explained from the perspective of micro kinetics.
出处
《燃烧科学与技术》
EI
CAS
CSCD
北大核心
2014年第4期307-312,共6页
Journal of Combustion Science and Technology
基金
国家自然科学基金资助项目(51376021)
中央高校基本科研业务费资助项目(2013JBM079)
关键词
扩散火焰
火焰电导率
低频电场
伏安特性
diffusion flame
flame conductivity
low-frequency electric field
voltage-current characteristics
