On the representation of gravity waves in numerical models of the shallow‐water equations
On the representation of gravity waves in numerical models of the shallow‐water equations
复制标题
浅水方程数值模型中重力波的表示
DOI：
10.1002/qj.49712656314
复制
发表时间：
2000
影响因子：
8.9
通讯作者：
D. Dritschel
中科院分区：
文献类型：
--
作者：
A. Mohebalhojeh;D. Dritschel
重力波，或不平衡的运动，发展过程中的浅水（SW）方程的数值模式的涡流的演变进行了详细的研究。这里的重点是接近平衡的流动，具有小但非零的重力波活动。对于正确初始化的流，当弗劳德数Fr < 1且罗斯比数Ro ≥ 1时，预期小的GW活动是合理的。
Gravity waves, or imbalanced motions, that develop during the evolution of vortical flows in numerical models of the shallow water (SW) equations are examined in detail. The focus here is on nearly‐balanced flows, with small but non‐zero gravity‐wave activity. For properly initialized flows, it is reasonable to expect small GW activity when Froude numbers Fr < 1 and Rossby numbers Ro ≲ 1.