江苏大学学报（自然科学版）2017，Vol.38Issue(1)：30-36,7.DOI:10.3969/j.issn.1671-7775.2017.01.006
气液喷射器喷射性能的数值模拟与优化
Numerical simulation and optimization of ejection performance for gas-liquid ejector
摘要
Abstract
According to the shortages of both traditional two-dimensional design and single-factor analysis based on experiments or CFD software,the flow field of gas-liquid ejector influenced by multiple factors was simulated by CFD software under four kinds of conditions.The effects of gas-liquid flow rate,length to diameter ratio of mixture pipe and outlet diameter of diffusion chamber on the ejection performance of gas-liquid ejector were compared and analyzed.The optimization was obtained to enhance the ejection performance of gas-liquid ejector.The results show that for the specific ejector,when gas-liquid flow rate and outlet diameter of diffusion chamber are increased,pressure drop and wall flow effect are increased with decreased work efficiency.The suitable gas-liquid flow rate is from 0.01 8 to 0.035,and the suitable outlet diameter of diffusion chamber is from 25 mm to 30 mm.When length to diameter ratio of mixture pipe is from 1 .00 to 1 .1 7,the wall flow effect is little,and the effects of deceleration supercharging and mixed heating are good. The results show that the appropriate parameters can better meet the requirements of operating characteristics.关键词
气液喷射器/CFD建模/喷射性能/数值模拟/优化Key words
gas-liquid ejector/CFD modeling/ejection performance/numerical simulation/optimization分类
生物科学引用本文复制引用
郑平,秦敬轩,陈旭..气液喷射器喷射性能的数值模拟与优化[J].江苏大学学报（自然科学版）,2017,38(1):30-36,7.基金项目
国家自然科学基金资助项目（51201009）；辽宁省教育厅科学研究项目 （）
