无粘流
欧拉方程
跨音速
休克(循环)
龙格-库塔方法
可压缩流
加速度
边界层
运动方程
有限体积法
数学
微分方程
机械
流量(数学)
欧拉公式
物理
数学分析
经典力学
空气动力学
压缩性
医学
内科学
出处
期刊:AIAA Journal
[American Institute of Aeronautics and Astronautics]
日期:1990-05-01
卷期号:28 (5): 942-944
被引量:192
摘要
rest of the equations in the system. The DMR method computes a separate sequence of optimal acceleration factors to be used for each component of the general solution vector. The acceleration scheme was applied to the system of time-dependent Euler equations of inviscid gasdynamics in conjunction with the finite-volume, Runge-Kutta, explicit, time-stepping algorithm. Using DMR without multigriding, between 30% and 10% of the total computational efforts were saved in the subsonic compressible flow calculations. The DMR method seems to be especially suitable for stiff systems of equations and can be applied to other systems of differential equations and other numerical algorithms.
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