山东建筑大学学报2025，Vol.40Issue(3)：62-69,8.DOI:10.12077/sdjz.2025.03.008
管内蒸汽淹没射流汽羽形状和穿透特性研究
Investigation on steam plume shapes and penetration characteristics of submerged steam jet in a pipe
摘要
Abstract
Direct contact condensation of steam submerged jet in subcooled water has attracted widespread attention due to its high heat and mass transfer rates.In this study,a visualization experimental system was developed to investigate steam submerged jet in a pipe.High-speed cameras were used to record condensation phenomena within a transparent pipe.The steam plume shape was characterized,and key parameters such as penetration length and expansion width were extracted.An empirical correlation for the dimensionless steam plume penetration length was also proposed.The results show that under 150 experimental conditions,five typical steam plume shapes were observed:hemispherical,conical,contraction-expansion-contraction,elliptical,and divergent.The dimensionless plume penetration length increases significantly with increasing steam mass flux and subcooled water temperature,but decreases sharply as the water flow Reynolds increases.The measured dimensionless penetration length ranges from 0.8 to 4.5,and the predicted values from the proposed correlation show a deviation of less than±20%compared to the experimental data.关键词
蒸汽射流/汽羽/可视化方法/图像处理/穿透长度Key words
steam jet/steam plume shapes/visualization method/digital image processing/penetration length分类
能源与动力引用本文复制引用
周涛,房达,楚晨潇,孔垂鑫,陈宪丙..管内蒸汽淹没射流汽羽形状和穿透特性研究[J].山东建筑大学学报,2025,40(3):62-69,8.基金项目
山东建筑大学博士科研基金项目(X20035Z) （X20035Z）
