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层流叶片在压气机中的应用研究

Application Research of Laminar Blade in Compressor
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摘要 压气机叶片表面层流流动及转捩现象的捕捉是研究压气机层流叶型的重点和关键。通过基于SST转捩模型的数值方法对某压气机叶型进行数值模拟分析,以精确捕捉普通湍流模型无法捕捉的叶片表面的层流流动及转捩现象,并给定叶片表面转捩的判定依据。在此基础上深入研究低雷诺数环境和高湍流度环境对压气机叶片表面层流流动的影响,验证了在实际压气机环境下,叶片表面的层流流动是可能存在的。为后续压气机层流叶型设计提供数值验证手段和可行性验证基础。 The catch of the laminar flow and the transition phenomenon in the compressor blade is the focus and key to study the laminar blade in compressor. The numerical simulation of a compressor blade is carried out by numerical method based on SST transition model. The numerical method based on SST transition model can accurately capture the laminar flow and transition phenomena of the blade surface which can not be captured by the ordinary turbulence model, and give the criterion for determining the transition of blade surface. On this basis, the influence of low Reynolds number environment and high turbulence environment on the laminar flow of the compressor blade surface is studied. It is verified that the laminar flow on the blade surface is possible under the actual compressor condition. The study provides numerical verification means and feasible verification foundation for the design of laminar blade in compressor in the flowing study.
作者 曾瑞慧 高丽敏 杨冠华 蔡明 ZENG Rui-Hui1,2, GAO Li-Min1,2 YANG Guan-Hua1,2 CAI Ming1,2. (1. School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072, China; 2. Collaborative Innovation Center of Advanced Aero-Engine, Beijing 100191, China)
出处 《工程热物理学报》 CSCD 北大核心 2017年第11期2348-2356,共9页 Journal of Engineering Thermophysics
基金 国家自然基金重点项目(No.51476132)
关键词 层流叶片 转捩 表面摩擦阻力 高空低雷诺数 高湍流度 laminar blade transition skin friction resistance low reynolds number high turbulencelevel
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