| 摘要: |
| 采用定常CFD手段,对比分析了某混合型扩压器及其常规造型扩压器的内部流动特点,着重研究了离心叶轮出口至扩压器喉部之间的流场分布,初步揭示了混合型扩压器以及与其相似的管式扩压器入口段的特殊三维造型的一些流动特点和流动机理。 |
| 关键词: 混合型扩压器 离心压气机 马赫数 前掠 |
| DOI： |
| 分类号:V235.1 |
| 基金项目: |
|
| Numerical investigation for a mixed type diffuser |
|
SHI Jian-cheng1,2, LIU Bao-jie3
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1.Coll.of Energy and Power Nanjing Univ.of Aeronautics and Astronautics,Nanjing 210016,China;2.Chinese Aviation Powerplant Research Inst.,Zhuzhou 412002,China;3.Coll.of Energy and Power Engineering,Beijing Univ.of Aeronautics and Astronautics,Beijing 100083,China
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| Abstract: |
| A mixed type diffuser is numerically studied in the stage condition by comparing with a cambered vane diffuser.The flow fields are analyzed in detail.The typical flow structures,the flow mechanism,and their relation to the special swallow entrance of the mixed type diffuser are discussed. |
| Key words: Mixed type diffuser Centrifugal compressor Mach number Forward swept |
