旋转磁场引发火焰旋转的临界值研究  

Study on the Critical Rotating Speeds of a Rotating Magnetic Field Inducing Fire Whirl

作　　者：夏云春[1] 王清安[1] 

机构地区：[1]中国科学技术大学火灾科学国家重点实验室,合肥230026

出　　处：《燃烧科学与技术》2003年第6期511-515,共5页Journal of Combustion Science and Technology

基　　金：国家自然科学基金重点资助项目(59936140).

摘　　要：通过对旋转火焰涡运动微分方程式的分析,研究旋转磁场引发火焰旋转时的磁场旋转临界速度与磁场参数之间变化的关系,以及旋转磁场方向的变化对旋转磁场引发旋转火焰时磁场旋转速度临界值的变化规律.通过分析,能进一步了解火焰在实际燃烧过程中的燃烧特性和动力学特性,为实际火灾采取有效的扑灭措施提供理论参考.By means of the analysis of the moving differential equation for fire whirl, the relationship of a rotating magnetic field between the critical rotating speed of the magnetic field and its intensity is studied in the process of a rotating magnetic field inducing fire whirl, and the rule how the change in direction influences the critical speed of the magnetic flied is also studied. After the analysis, we know more about the combustion and moving characteristics of a flame, and this can provide information for us to take effective measure to extinguish fire in real fires.

关 键 词：旋转磁场 火焰 临界值 

分 类 号：TK411.28[动力工程及工程热物理—动力机械及工程]