弯曲叶片匹配特性研究  

Investigation of a Matching Question About Curved Blade

作　　者：高怡秋[1] 周振东[1] 

机构地区：[1]中国船舶重工集团公司第704研究所,上海200031

出　　处：《汽轮机技术》2009年第2期116-118,共3页Turbine Technology

摘　　要：采用弯曲叶片是汽轮机、燃气轮机降低损失,提高效率的有效手段。对某型燃气轮机涡轮直叶片进行了改型,给出了多种弯曲角度的叶型,并运用CFD软件进行了数值模拟,探讨了叶片弯曲后级性能发生的变化。根据不同模型的性能差异,提出了静叶、动叶弯曲的匹配问题,分析了密流、气流角、马赫数沿叶高的分布,得到了合理的弯曲匹配叶型。The effectiveness of the curved blade approaches in decreasing loss and lifting efficiency Of turbine. The improving schemes for a blade of certain gas turbine are brought out which are various compound models with different curve angles on stator blade and rotor blade. The three-dimensional numerical simulation has been done, by which the previous re- suits are compared with present model and the change of the stage has been explored. Consequently a matching question about caused by several parameters such as flow angle, Mach number is discussed. Finally a proper one is obtained.

关 键 词：燃气涡轮 弯曲叶片 匹配 

分 类 号：TK263.3[动力工程及工程热物理—动力机械及工程]