摘要
应用气液两相流动的双流体模型,数值模拟了射流器内臭氧—水的混合过程,得到了喉管内流场的参数分布,揭示了利用射流器进行臭氧—水混合的工作机理,为射流器结构参数优化设计和性能预测提供了有效手段。分析了最优喉管长度与面积比的关系,结果表明:最优喉管长度随着面积比的增大而增长,当面积比为2.25-6.25时,射流器的最佳喉管长度应在5.84-7.47d1之间。
Gas-liquid two-phase flow model was applied to simulate mixing process of ozone-water in jet aerator. A comprehensive parameter distribution was obtained, which revealed the mixing mechanism of jet aerator to mix ozone-water. These provided a method for optimizing structural parameters of jet aerator and performance forecast. Relationship between optimal length of throat pipe and area ratio was analyzed. The results showed that the bigger area ratio, the longer throat pipe length, and the optimal length of throat pipe should be 5.84~7.47d1 when area ratio was 2.25~6.25.
出处
《中国农学通报》
CSCD
2008年第10期549-553,共5页
Chinese Agricultural Science Bulletin
基金
"十一五"国家科技支撑计划项目"设施农业配套关键技术装备研究开发"(2006BAD11A10)
关键词
射流器
数值模拟
臭氧
喉管
优化设计
jet aerator, numerical simulation, ozone, throat pipe, optimal design
