射流器臭氧—水混合数值模拟及喉管优化

中国农学通报 ›› 2008, Vol. 24 ›› Issue (10): 549-553.

射流器臭氧—水混合数值模拟及喉管优化

许多武,宋卫堂

收稿日期:2008-07-31 修回日期:2008-08-25 出版日期:2008-10-05 发布日期:2008-10-05

The numerical simulation of mixing ozone-water in jet aerator and throat pipe optimization

Duo-wu Xu,宋卫堂 Song Wei-tang

Received:2008-07-31 Revised:2008-08-25 Online:2008-10-05 Published:2008-10-05

摘要/Abstract

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。

Abstract: 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.

中图分类号:

TK730

许多武,宋卫堂. 射流器臭氧—水混合数值模拟及喉管优化[J]. 中国农学通报, 2008, 24(10): 549-553.

Duo-wu Xu,宋卫堂 Song Wei-tang. The numerical simulation of mixing ozone-water in jet aerator and throat pipe optimization[J]. Chinese Agricultural Science Bulletin, 2008, 24(10): 549-553.