径流/斜流叶轮全三维反问题方法中的边界条件和级数截断  

Boundary conditions and Fourier series truncation errors with 3-D inverse method for radial and mixed flow turbomachines

作　　者：田晓沛[1] 单鹏[1] 

机构地区：[1]北京航空航天大学能源与动力工程学院,北京100191

出　　处：《航空动力学报》2013年第2期390-400,共11页Journal of Aerospace Power

基　　金：高等学校学科创新引智计划(B08009)

摘　　要：研究了脉动流场不同类型的进出口边界条件,比较了端壁边界条件的不同给法,并用基于定常雷诺平均Navier-Stokes(RANS)的商用计算流体动力学(CFD)软件数值研究了进出口、端壁的边界条件和级数截断误差对气动设计的影响.研究表明:进出口边界条件的影响可忽略不计,端壁边界条件的影响较大.取傅里叶级数约前15项后,截断误差的影响可忽略不计.Different kinds of the inlet and outlet boundary conditions were studied in theory and different specifications of the endwall boundary condition were compared.The impacts of the inlet,outlet,endwall boundary conditions and the series truncation errors on the blade design by a steady Reynolds averaged Navier-Stokes（RANS） solver were studied numerically.The results show that the impacts of the inlet and outlet boundary conditions on the blade design are neglectable,while those of the endwall boundary conditions are relative large.The impacts of the series truncation errors could be neglected if the number of Fourier series terms is more than 15.

关 键 词：径流和斜流叶轮 通流设计方法 全三维反问题 流线曲率法 边界条件 级数截断误差 

分 类 号：V235[航空宇航科学与技术—航空宇航推进理论与工程]