摘要
通过对Rundinger气液两相喷嘴流动模型计算机求解发现,大载荷比两相喷嘴流动中液体和气体的温度基本相等且与入口温度相同,从而提出等温流动假设,并对其合理性进行理论分析。得到一种适合于大载荷比的气液两相喷嘴简化等温流动数学模型,并对喷嘴参数和性能的影响因素进行研究。将该数学模型与Rudinger模型进行理论计算和试验比较,发现在大载荷比时两个模型计算结果和试验数据非常接近。
The computerized numerical solutions of Rundinger＇s gas/liquid two-phase flow model indicated that, the gas and liquid temperature remained substantially constant throughout the nozzle and equaled to the inlet temperature of the nozzle on the conditions of large loading ratios, the isothermal assumption was provided and analyzed theoretically. With the isothermal assumption, the simplified isothermal flow model for large loading ratios of gas/liquid two-phase nozzle was obtained, and the effects of parameters on nozzle＇s performance was investigated. At last, the two models were compared theoretically and experimentally, the research results show good agreement between the calculational result and the experimental data of the two models on the condition of large loading ratio.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2008年第1期121-125,共5页
Journal of Mechanical Engineering
基金
国家高技术研究发展计划资助项目(863计划,2006AA09Z302)。
关键词
气液
两相喷嘴
等温模型
Gas/liquid Two-phase nozzle Isothermal model
