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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。
Compressor laminar flow laminar flow and transition phenomenon is to capture the laminar flow compressor laminar flow key and key. The numerical simulation of a compressor blade based on the numerical method based on the SST model was carried out to accurately capture the laminar flow and turbulence on the blade surface which can not be captured by ordinary turbulence model. . On this basis, the effects of low Reynolds number environment and high turbulence environment on the laminar flow in the compressor blade surface are studied in detail. It is verified that the laminar flow on the blade surface may exist in the actual compressor environment. It provides the numerical verification method and feasibility verification basis for laminar flow laminar design of follow-up compressor.