【摘要】 <正> 本文在大气压力下,采用γ射线衰减技术,实验研究了空气-水两相混合物在内径为23.7毫米水平圆管内稳定流动时,质量含气率低于0.001情况下的空泡份额。 一、实验装置及测量方法 实验是在一开式回路上进行的。水由水泵供给,空气由空气压缩机供给。空气和水在混合器混合后,沿着透明的有机玻璃管水平流动。空泡份额是在流动稳定后(约离混合器将近3米处)测量的。空泡份额是采用γ射线衰减技术中的扫描测量法和一次测量法更多还原

【Abstract】 This paper reports the measured results of the void fraction of the air-water two-phase flow in a horizontal pipe at low quality. The technique of the r-ray attenuation was used to measure the distribution of the chordal-average void fraction in horizontal and vertical direction respectively, under different quality and different mass flux. The average void fraction over a whole cross section was measured at the same time. The experimental results have been discussed.更多还原