内冷涡轮叶栅三维气热耦合数值模拟

苏生; 刘建军; 安柏涛

内冷涡轮叶栅三维气热耦合数值模拟

1.
中国科学院工程热物理研究所, 北京 100080
2.
中国科学院研究生院, 北京 100080

基金项目: 国家863计划(2002AA5030102004AA503010)

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出版历程
- 收稿日期: 2006-11-22
- 修回日期: 2007-04-03
- 刊出日期: 2007-12-28

Numerical simulation of conjugate heat transfer for an internally cooled 3-D turbine blade

1.
Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080, China
2.
Graduate University of Chinese Academy of Sciences, Beijing 100080, China

摘要

摘要: 为了研究涡轮动叶的内部冷却技术,对采用绝热边界的实心叶片、采用气热耦合的实心叶片和采用气热耦合的空冷叶片进行了研究.发现叶片导热对叶片温度场的影响相当显著;具有带肋蛇形通道和涡流矩阵肋片的内冷结构能使叶片温度大幅下降,但叶片表面温度分布不均匀性增大,换热系数沿叶片表面呈不规则分布.
- 航空、航天推进系统 /
- 三维涡轮叶栅 /
- 带肋蛇形通道 /
- 涡流矩阵肋片 /
- 气热耦合
Abstract: To study the internal cooling technology of turbine blade,three types of blades,i.e.non-cooled blade using adiabatic boundary condition,non-cooled blade using conjugate heat transfer method,and air-cooled blade using conjugate heat transfer method,were studied.The results show that heat conductivity of the blade has a significant influence on blade temperature distribution;the structure of rib-roughened cooling and latticework cooling makes the blade temperature drop markedly.However,this leads to increased non-uniformity of blade temperature distribution and irregular heat transfer coefficient distribution on the blade surface.
- aerospace propulsion system /
- 3-D turbine blade /
- rib-roughened serpentine passage /
- latticework passage /
- conjugate heat transfer

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参考文献(10)

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