Numerical simulation of convectively generated vortices: Application to the Jovian planets
Numerical simulation of convectively generated vortices: Application to the Jovian planets
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DOI：
10.1016/j.epsl.2013.03.046
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发表时间：
2013-06-01
影响因子：
5.3
通讯作者：
Mayr, Hans G.
中科院分区：
文献类型：
--
作者：
Chan, Kwing L.;Mayr, Hans G.
通过数值实验研究了旋转对流区中长寿命涡产生的可能性。计算域是具有固定纬度的矩形框。完全可压缩流体方程求解采用显式，强保守的有限差分方法。共计算了八个案例，涵盖两个不同的纬度和四个不同的旋转速率。随着自转速率的增加，一个长寿命的气旋首先出现。高纬度环境更有利于低涡的形成。当自转足够快时，反气旋就会出现。讨论了数值结果对类木行星的可能意义。(C)2013爱思唯尔有限公司版权所有。
Numerical experiments are performed to study the possibility of long-lived vortex generation in rotating convection zones. The domain of computation is a rectangular box with fixed latitude. The fully compressible fluid equations are solved using an explicit, strongly conservative finite difference method. A total of eight cases covering two different latitudes and four different rotation rates were computed. As the rotation rate increases, a long-lived cyclone first appears. The high latitude environment is more favorable for vortex formation. An anticyclone appears when the rotation is adequately fast. Possible implications of the numerical results to the Jovian planets are discussed. (C) 2013 Elsevier B.V. All rights reserved.