1.Experimental study was performed using water as working medium to investigate the flow instability in a vertical narrow annuli with both subcooled and saturated boilings.

1.以水为工质,分别在过冷和饱和条件下对竖直窄道行对沸腾动不稳定性实验,观测到窄道饱和沸腾时所特有的蒸干型动不稳定性。