摘要
试图从理论上分析添加铁磁性颗粒流体的沸腾传热特性 ,具体讨论了磁场梯度与重力相同、相反以及垂直三种情况时磁场对沸腾的影响 ,得出了一些有益的结论 :在磁场梯度与重力方向相同时 ,在磁场力达到一定程度的“铁磁流体“中可能不再有气泡产生 ;在磁场梯度和重力方向相反时 ,会创造一个相应于微重力的环境 ;而磁场梯度和重力方向相垂直时 ,气泡的形状和脱离的路径会有变化。
The research of boiling heat transfer with ferromagnetic particles still stays the stage of observation. Some basic considerations were tried to put forward in this paper. This paper highlighted on the influences of magnetic gradient direction as for same, opposite and perpendicular to that of gracity. Some interesting results can be concluded: when the direction of magnetic gradient is the same as gravity, as the magnetic force exceed some value, there will be no bubble in the fluid; when the direction of magnetic gradient is opposite to gravity, the microgravity atmosphere is created; when the direction of magnetic gradient is perpendicular to gravity, the shape and department route of bubble will change.
出处
《热科学与技术》
CAS
CSCD
2003年第1期30-33,共4页
Journal of Thermal Science and Technology
基金
国家自然科学基金资助项目 ( 5 9995 5 5 0 -3)
关键词
沸腾传热
铁磁性颗粒
表面张力
磁场强度
蒸气泡
ferromagnetic particles
interfacial intension
department diameter
magnetic intensity
