单腔内冷涡轮的气热耦合数值仿真

王强; 郭兆元; 周驰; 冯国泰

单腔内冷涡轮的气热耦合数值仿真

1.
中北大学机电工程学院,太原 030051
2.
中国船舶重工集团公司第705研究所,西安 710075
3.
哈尔滨工业大学能源科学与工程学院,哈尔滨 150001
4.
哈尔滨工业大学能源科学与工程学院,哈尔滨 150001

基金项目: 国家自然科学基金(50476028,50576017)

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- 被引次数: 0
出版历程
- 收稿日期: 2009-12-02
- 修回日期: 2010-03-08
- 刊出日期: 2011-01-28

Coupled heat transfer simulations of an air-cooled turbine with single cooling channel

1.
School of Mechatronics Engineering, North University of China,Taiyuan 030051,China
2.
The 705th Research Institute, China Shipbuilding Industry Corporation,Xian 710075,China
3.
School of Energy Science and Engineering, Harbin Institute of Technology,Harbin 150001,China
4.
School of Energy Science and Engineering, Harbin Institute of Technology,Harbin 150001,China

摘要

摘要: 将所开发的HIT-3D气热耦合求解器应用于某低压涡轮的数值仿真中,对该涡轮设计简单的内冷结构,比较了不同湍流、转捩模型对叶片温度场预测的影响,初步验证了所开发的耦合求解器的应用能力.由于目前涡轮的冷却结构复杂,数值计算量比较大,为此发展了一种气热耦合与工程设计相结合的方法,以该涡轮为算例初步验证了该方法,并初步模拟了粗糙内壁面对叶片热负荷的影响.计算表明:在层流、转捩流动区域,采用全湍流模型预测的温度要比采用转捩模型的高,同时所发展的气热耦合与工程方法是可行的,可以极大地减少设计中的计算量.
- 涡轮 /
- 冷却系统 /
- 气热耦合 /
- 转捩流动 /
- 工程设计
Abstract: The developed coupled solver HIT-3D was applied to the coupled heat transfer simulations of an air-cooled turbine with single cooling channel.Different turbulence and transition models were utilized.The numerical results validated the ability of the developed solver in the engineering simulation.Then a method combining the coupled heat transfer and engineering design techniques was developed to reduce the computational loads of simulations of turbines with complex cooling systems.With the same test case mentioned above,such method was validated,and the influences of rough inner wall on the blade thermal load were investigated.The results show that the transition model predicts lower vane thermal load than the full turbulence models at the transition zones on the vane surface,and that the developed method can greatly reduce the computational load during the turbine design.
- turbine /
- cooling system /
- coupled heat transfer /
- transition flow /
- engineering design

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参考文献(12)

[1]	Bohn D,Heuer T.Conjugate flow and heat transfer calculations of a high-pressure turbine nozzle guide vane .AIAA-2001-3304,2001.
[2]	Hylton L D,Milhec M S,Turner E R,et al.Analytical and experimental evaluation of the heat transfer distribution over the surface of turbine vanes .NASA-CR-168015,1983.
[3]	Kusterer K,Bohn D,Sugimoto T,et al.Conjugate calculations for a film-cooled blade under different operating conditions .ASME-GT2004-53719,2004.
[4]	Heidmann J D,Kassab A J,Divo E A,et al.Conjugate heat transfer effects on a realistic film-cooled turbine vane .ASME-GT2003-38553,2003.
[5]	郭文,吉洪湖,蔡毅,等.高压涡轮导叶内冷通道流动特性计算分析[J].航空动力学报,2005,20(5):831-835. GUO Wen,JI Honghu,CAI Yi,et al.Computational analysis of the HP turbine nozzle guide vane internal flow characteristics[J].Journal of Aerospace Power,2005,20(5):831-835.(in Chinese)
[6]	王松涛.叶轮机三维黏性流场数值方法与弯叶栅内涡系结构的研究 .哈尔滨:哈尔滨工业大学,1999. WANG Songtao.Numerical method of 3D viscous flow field in turbomachinery and study of vortex structure in bowed blade cascade .Harbin:Harbin Institute of Technology,1999.(in Chinese)
[7]	Pulliam T H,Chaussee D S.A diagonal form of an implicit approximate factorization algorithm[J].Journal of Computational Physics,1981,39(2):347-363.
[8]	Godunov S K.A finite difference method for the numerical computation of discontinuous solutions of the equations of fluid dynamics[J].Mathematicheskii Sbomik,1959,47:271-306.
[9]	Smith L H.The radial equilibrium equation of turbomachinery[J].ASME Journal of Engineering and Power,1966,88(1):1-22.
[10]	朱自强.应用计算流体力学[M].北京:北京航空航天大学出版社,1998:134.
[11]	李荣华,冯果忱.微分方程数值解法[M].北京:高等教育出版社,1995:330-332.
[12]	Han Z X,Dennis B H.Simultaneous prediction of external flow-field and temperature in internally cooled 3-D turbine blade material .ASME GT2000-253,2000.