摘要
计算复杂实用外形绕流时，由于几何外形的复杂性，计算网格的空间网格长宽比变化很大。分析表明使用这类网格将影响隐式多重网格法的收敛率，如果使用与网格长宽比有关的耗散模型。
The effects of grid aspect ratio on the efficiency of implicit multigrid method have been analysed theoretically. The results indicate that the algorithm affects convergence on highly stretched or non unifirm grids. The improvement ways are introduced, and the validations are also been discussed. Finally the comparison of convergence between the original model and the improved one is presented.
出处
《计算物理》
CSCD
北大核心
1999年第1期1-6,共6页
Chinese Journal of Computational Physics
关键词
隐式多重网格法
网格长宽比
耗散模型
绕流
implicit multigrid method
realistic aerodynamic configuration
grid aspect ratio
dissipation model.
