多重网格法求解轴流压气机内部流场

A Multi-Grid Scheme for Axial Flow inside a Compressor

提出了一种能够与显式时间推进法、有限体积差分格式、粘性体积力法有效地配合使用的多重网格法来求解轴流压气机内部流场。作者对美国NASA37#跨音速轴流压气机转子内部流场的数值计算表明 ,多重网格法的计算结果与试验结果吻合很好 ,同时该多重网格法的收敛速度比不用多重网格法加快了 1 5倍。

A new multiple-gird scheme is presented, which is used to calculate the flow fi e ld inside the transonic compressor rotor with the combination of explicit time m arching method, finite volume difference code and distributed body force. A calc ulation of a NASA37 transonic compressor rotor by the scheme has been carried ou t. It shows that the author's multi-grid scheme increases the converging speed b y about one and half times and that the calculation results agree fairly well wi th the measurement.