| 具有前缘凹陷特征的气冷涡轮叶型研究 |
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| 引用本文： | 王凯,王松涛,王仲奇. 具有前缘凹陷特征的气冷涡轮叶型研究[J]. 航空动力学报, 2009, 24(5): 1089-1095 |
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| 作者姓名： | 王凯 王松涛 王仲奇 |
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| 作者单位： | 哈尔滨工业大学,能源科学与工程学院,哈尔滨,150001;哈尔滨工业大学,能源科学与工程学院,哈尔滨,150001;哈尔滨工业大学,能源科学与工程学院,哈尔滨,150001 |
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| 基金项目： | 国家“863”计划(2008AA) |
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| 摘 要： | 提出了一种具有前缘自锁涡的新型气冷涡轮叶型.对新叶型流场进行了跨声速情况下的详细数值研究.观察了由前缘冷气喷射所形成的冷气旋涡沿叶型表面的变化.将新叶型的冷却效率、能量损失、压力场等与传统气冷涡轮叶型进行了对比.结果表明:新气冷叶型能够把由前缘冷气喷射形成的冷气旋涡锁定在其凹陷部位.冷气与主流的掺混损失减小.因此,前缘冷气喷射孔的列数可以减少.相应地,冷气喷射量可以减少.
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| 关 键 词： | 凹陷特征 冷气旋涡 跨声速 冷却效率 |
| 收稿时间： | 2008-11-12 |
| 修稿时间： | 2008-12-09 |
Study of an air-cooled turbine blade profile with depression feature at leading edge |
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| WANG Kai,WANG Song-tao and WANG Zhong-qi. Study of an air-cooled turbine blade profile with depression feature at leading edge[J]. Journal of Aerospace Power, 2009, 24(5): 1089-1095 |
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| Authors: | WANG Kai WANG Song-tao WANG Zhong-qi |
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| Affiliation: | School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | A new air-cooled turbine blade profile with depression feature at leading edge was presented in this paper.The flow field of this blade profile at the transonic condition was simulated in detail.The change of vortex position induced by the leading edge cooling air injection along the blade profile was observed.The aerodynamic characteristics of the new blade,such as film effectiveness,energy loss and pressure field,were compared with the traditional air-cooled turbine blade.The result shows that this new bl... |
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| Keywords: | depression feature cooling vortex transonic film effectiveness |
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