差分干涉法测量微重力环境蜡烛火焰的温度

从原理上介绍了用于测定微重力环境中蜡烛火焰温度分布的Ｗｏｌｌａｓｔｏｎ棱镜差分干涉仪,并给出了从差分干涉图计算轴对称蜡烛火焰温度分布的数学过程。测量与计算结果表明,微重力环境下的蜡烛火焰温度低于烟粒子的最小生成温度。由于自然对流消失,化学反应放热效率受到组分扩散速率的控制,辐射热损失的冷却作用相对增强,这是引起微重力环境中蜡烛火焰温度降低的主要原因。结论部分地证实微重力环境中蜡烛火焰出现暗蓝色无烟现象是由于火焰温度较低的推论。     

Turbulence in laminar premixed V-flames

Combustion process coexists with flow in almost all the practical combustion devices. The flame-flow interactions have been one of the most challenging areas in combustion science and technology as well as combustion researches, since they are closely related to the fundamental elements of combustion process, e.g. flame structure, flame propagation, flame stabilization, flame instabilities, soot process and pollutants forming. Turbulence-flame interactions have been widely studied and many imp…