机载蒸发循环系统两相流换热特性实验研究

相变传热凭借其良好的传热能力和较低的能耗的特点在航空航天领域的电子设备冷却尤其是蒸发制冷循环系统中得到应用。飞行器在机动飞行或进出大气层都会遇到超重状态。超重状态下的两相流的流动及传热特性相对于静止状态时候发生了很大的变化。以流动水为介质，通过搭建旋转平台对超重状态下两相流系统进行了实验研究，得到流体在过载时流动特性和传热特性的初步变化规律。结果显示超重对流动和换热都会产生显著影响。试验结果对于飞行器上相变换热器的理论分析和设计积累了有价值参考资料。

Experimental Investigation on the Heat Transfer Characteristic of Two-Phase Flow in an Onboard Vapor Cycle System

Phase change heat transfer is used widely in avionics cooling,especially in the onboard vapor cycle cooling system,for its high heat transfer rate and low energy consumption.The high gravity or dynamic load is commonly encountered in maneuver flight and leaving or reentry the atmosphere.The flow and heat transfer characteristics of two phase flow under dynamic load and still condition are quite different.The experiment performed on self-built rotation platform was conducted and the primary flow and heat tra...