| 周华,夏南.油气分离器内气液两相流的数值模拟[J].计算力学学报,2006,23(6):766~771 |
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| 油气分离器内气液两相流的数值模拟 |
| Numerical simulation on the gas-liquid flows inside the oil-gas Separators |
| 修订日期：2004-11-02 |
| DOI：10.7511/jslx20066143 |
| 中文关键词: RANS方程 DPM模型 气液两相流 油气分离器 空气压缩机 |
| 英文关键词:RANS,DPM,gas-liquid flow,oil-gas separator,air compressor |
| 基金项目:复盛实业(上海)公司研发项目 |
| 周华 夏南 |
| [1]同济大学航空航天与力学学院,上海200092 [2]上海大学上海市应用数学与力学研究所,上海200072 |
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| 中文摘要: |
| 用DPM模型对油气分离器内的气液两相流流场进行了数值模拟。对计算结果分析发现，除了离心力作用可以增强分离效果外，气流在壁面上的碰撞过程对提高分离效果也具有重要作用。据此提出的改型设计方案在工程试验中获得了更高的分离效率．证明本文数值模拟所用的计算模型能够满足此类计算的要求，计算后的机理分析也反映了流动的本质。 |
| 英文摘要: |
| The flow field inside an oil-gas separator are simulated with Discret Phase Model(DPM).Based on the analysis of the numerical results,find that,besides the centrifugal force,the collision of the oil droplets on the wall and the velocity distribution at the exit plane of the primary separator are also important factors to the oil-gas separation efficiency.According to the above analysis,modifications have bean made to the structure of the separator. With the modified design,the oil carry-over rate is reduced from 7ppm down to 3ppm in succeeding engineering tests,and it proves that our numerical model is valid in this type of computations,and the analysis of the flow mechanism is also correct. |
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