水蒸汽爆炸粗混合阶段机理研究的实验设计

高温颗粒在粘滞性冷液中沸腾蒸发瞬变运动引发蒸汽爆炸的工程安全问题，其流体动力特性与人们熟知的颗粒在粘滞性流体内的运动特性完全不同．是一个多相热物理基础问题．涉及的过程和现象十分复杂。为了验证高温颗粒在粘滞性冷液中下落阻力特性的蒸发曳力模型，设计了高温颗粒下落冷池沸腾可视化实验装置。

Experiment Design of Mechanism Study during Coarse Mixing Stage of Vapor Explosion

Extremely high rapid evaporation could occur when high-temperature particles contact with low-temperature liquid, which called vapor explosion. Since this kind of phenomenon is associated with the safety of engineering and the problems in high-transient multi-phase fluid and heat transfer, the study about this phenomenon has been received widely attention over the world. The content of this paper is to design a special equipment to study the special resistant acting on the moving high-temperature particles., which is induced by the high-speed evaporation surrounding the particles. The purpose of the study is to experimentally verify the theory of vapor explosion.