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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。
In the multi-stage axial meridional midline 1.5V Euler equations, in which the blade force, the viscous effect of fluid, the role of air-conditioning in the form of the source to take into account the equation, the control equation using one-step time to promote TVD -LW format for discretization and solution. The calculation results show that this method can predict the average aerodynamic parameters distribution and aerodynamic performance of multi-stage axial turbine, and it is fast and flexible. It can be used to solve the turbine’s characteristic curve or optimize the aerodynamic performance.