功率密度分布对两相流稳定性影响的实验研究

Experiment Study on Effect of Distribution of HeatingPower Density on Stability of Two Phase Flow

叙述了不同功率密度分布工况下的自然循环两相流稳定性实验研究。实验是在５ＭＷ核供热堆的热工水力学模拟实验回路（ＨＲＴＬ５）上进行的，实验中分别采用了功率密度线性分布和功率密度余弦分布两种加热元件。其结果表明：在低压低干度自然循环系统中，加热元件的功率密度分布形式对两相流稳定性的影响很小，验证了功率密度线性分布下两相流稳定性实验结果的通用性。

he experiment on stability of two phase flow in natural circulation system under condition of different distribution of heating power density is described in this paper.The experiment are performed in the simulation test loop HRTL5,which simulate the geometry and design of the 5MW heating reactor Heating component of linear distribution of heating power density and heating component of cosinoidal heating power density is individually adopted in the test.The experiment results show that distribution of heating power has little effect on the stability of two phase flow in the natural circulation and low pressure system.The generality of the experiment results of two phase stability under linear distribution of heating power density is verified.