涡轮矩形叶栅中的旋涡模型的进展回顾
A Review of Vortex Model Development for Rectangular Turbine Cascades
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摘要: 介绍了自1955年以来,在涡轮矩形叶栅流动研究中出现的6个有价值的旋涡模型,论述了它们形成的机理,以期通过对涡轮矩形叶栅旋涡模型发展状况的回顾,来说明气动力学领域中发展起来的涡控制技术的实质是设法组织或重新组织涡结构。认为未来涡轮叶栅设计的改进,在很大程度上取决于这一技术的潜在应用。Abstract: Six valuable vortex models for the rectangular turbine cascades are considered and the mechanisms of their evolution are discussed.The review comes to a conclusion that the substance of the vortex controlling technology in aerodynamic field is an attempt to construct or reconstruct the vortex structure.Therefore the future improvement in the flow efficiency of the turbine cascades is the optimum matching between cutting and expansion of the gas curved flow by controlling the strength,length and location of the passage vortex at outlet plane.
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Key words:
- turbine /
- rectangular cascade /
- vortex model
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