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多级轴流透平气动特性计算方法研究 被引量:1

Investigation on the Computational Method of Axial Turbine Aerodynamic Characteristics Based on 1.5 Dimensional Euler Equations
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摘要 在多级轴流透平子午面中线上建立1.5维欧拉方程组,其中叶片作用力、流体的黏性作用、冷气的作用以源项的形式考虑到方程中,控制方程采用一步时间推进TVD-LW格式进行离散和求解。计算结果表明,该方法能够预测多级轴流透平的平均气动参数分布和气动性能,具有快速、灵活的特点,可以用于求解透平的特性曲线或进行气动优化。 The 1.5 dimensional Euler-equations are constructed on the meridional surface meanline of multi-stage axial-turbine.The effects of blade force,gas viscousity and coolant are considered by adding source terms to the equations.The one-step time-marching TVD-LW scheme is employed to solve the governing equations.Computational results showed that the present method is fast and flexible,and can be used for predicting the turbine aerodynamic characteristics or for turbine aerodynamic optimization.
出处 《工程热物理学报》 EI CAS CSCD 北大核心 2011年第4期569-572,共4页 Journal of Engineering Thermophysics
基金 国家973项目资助(No.2007CB210108)
关键词 轴流透平 欧拉方程 特性预测 TVD格式 multi-stage axial turbine Euler equations characteristic predicting TVD-LW scheme
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