摘要
根据在流场数值计算中使用多重网格方法可以加速收敛的原理,在叶栅流场控制方程使用有限体积差分法进行离散的前提下,提出了一种新的4重网格方法来加速求解压气机叶栅可压缩流动,该方法可以与显式时间推进法有效配合使用。通过对NASA67超音速轴流压气机叶栅流场的数值计算表明,该方法明显加快了流场计算的收敛速度,并且计算结果与试验结果吻合较好。
According to the theory of the multi - grid scheme, this paper puts forward a new multiple - grid scheme in the calculation of the diffuser grid flow field of NASA67, which is used with the combination of explicit time marching method, finite volume difference code and distributed body force. By using Navier- Stokes equations, Baldwin - Lomax algebraic turbulence model, finite volume method and Runge - Kutta time stepping schemes it analyzes the flow field of diffuser grid. The use of the multi - grid scheme makes the converging speed evidently increase. The calculation result tallies with the experimental result.
出处
《空军工程大学学报（自然科学版）》
CSCD
北大核心
2006年第2期13-14,17,共3页
Journal of Air Force Engineering University(Natural Science Edition)
关键词
多重网格法
有限体积差分
时间推进法
multi -grid scheme
finite volume difference code
explicit time marching method
