| 湍流弥散对轴心通风器油气分离过程的影响 |
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| 引用本文： | 徐让书,宗庆贺,刘立博,王娟娟.湍流弥散对轴心通风器油气分离过程的影响[J].航空发动机,2011,37(4):5-9. |
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| 作者姓名： | 徐让书 宗庆贺 刘立博 王娟娟 |
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| 作者单位： | 沈阳航空航天大学动力与能源工程学院,沈阳,110136 |
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| 摘 要： | 轴心通风器对航空发动机性能的提升有着重要意义，但其结构和内部流动均比较复杂，很难进行详细的试验研究。应用DPM模型对航空发动机轴心通风器内气液两相流流场进行了数值模拟。通过对比不同工况以及数学模型计算所得到的分离效率，结合试验测得数据，对轴心通风器油气分离机理和湍流的影响进行研究。结果表明：除了离心力和惯性分离对分离效果有重要影响外，湍流弥散对提高分离效率也有非常重要的作用，合理地提高湍流强度可以减少滑油消耗量。
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| 关 键 词： | 轴心通风器 湍流弥散 分离效率 航空发动机 数值模拟 DPM模型 |
Effect of Turbulent Dispersion on Oil / Gas Separation Process in Axial Ventilator |
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| Authors: | XU Rang-shu ZONG Qing-he LIU Li-bo WANG Juan-juan |
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| Institution: | XU Rang-shu,ZONG Qing-he,LIU Li-bo,WANG Juan-juan(Power and Energy Engineering College,Shenyang Aerospace University,Shenyang 110136,China) |
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| Abstract: | The axial ventilator had an important significance in promoting the performance of the aeroengine,however,the research on its complicated structure and inner flow was hardly experimental studied in detail.The oil / gas two-phase flow field in the axial ventilator for aeroengine was numerically simulated by the DPM model.The oil/ gas separation mechanism of the axial ventilator and turbulence effect were investigated by the experimental data and the separation efficiencies which were calculated by the mathem... |
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| Keywords: | axial ventilator turbulent dispersion separation efficiency aeroengine numerical simulation DPM model |
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