【摘要】 通过对超音速汽液两相流在变截面通道中的升压过程的实验研究 ,得到了变截面通道内超音速汽液两相流的压力分布规律 .实验结果表明 ,变截面通道中超音速汽液两相流的压力分布与出口压力、进水流量无关 ,而主要的影响因素是进水温度和进汽压力 ,同时超音速汽液两相流在变截面通道的渐缩部分的压力可以近似认为不变 ,凝结激波发生在变截面通道的喉部等 ,这些研究结果对该技术的进一步理论研究和应用均具有重要意义更多还原

【Abstract】 The process of supersonic steam water two phase flow in a channel with variable section is studied experimentally and the pressure profiles along the channel are obtained. The experiment shows that such pressure distributions are not affected by the outlet water pressure and the inlet water flux, but mainly depend on the temperature of inlet water and the pressure of inlet steam. However, the pressures can be considered as constant value along the entire converging nozzle, and a shock wave appears at the nozzle throat. These conclusions are beneficial to the developments and applications of the lifting pressure technology with supersonic two phase flow in channel of variable section.更多还原