摘要
在计算域面积为常数的约束下，给出了几种不同精度的平流方程和ω方程的“最优垂直网格距”，以及在极限情况下的“协调垂直网格距”的表达式。还讨论了在水平和垂直分辨率不协调时数值解对能量传播和计算稳定性的影响。
ubject to constant computational area. two expressions of the optimal vertical grid length with different accuracies and an expression of the consistent vertical grid length for the advection equation and ω-equation were presented in the case of a single wave. And the corresponding expressions of consistent vertical grid length in the multiwave case was derived. Finally. a discussion has been made on the impact of the inconsistency of horizontal and vertical resolution on energy propagation and computational stability of the numerical solution.
出处
《气象学报》
CSCD
北大核心
1995年第2期129-137,共9页
Acta Meteorologica Sinica
基金
85-906-04-02课题资助
关键词
平流方程
Ω方程
垂直分辨率
Advection equation
ω-equation
Consistent horizontal and vertical resolution.
