【摘要】 对垂直向上流动过程的欠热水中汽泡的凝结及空泡份额沿流动方向的变化问题做了实验研究和理论分析。给出了欠热水中空泡份额沿流动方向变化的试验研究结果。通过对汽泡冷凝过程的传热机理分析,给出了垂直向上流动欠热水中计算空泡份额的公式,此公式与试验结果吻合较好。更多还原

【Abstract】 In this paper the theoretical analysis and experimental study are done for steam bubble coudensation and void fraction changing along upward-flow subcooled water. The experimental results of void fraction changing along flow direction and a correlation for calculating void fraction in upward-flow subcooled water are given. The correlation coincide with the data well.更多还原