Anelastic convection-driven dynamo benchmarks
Anelastic convection-driven dynamo benchmarks
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DOI：
10.1016/j.icarus.2011.08.014
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发表时间：
2011-11-01
期刊：
影响因子：
3.2
通讯作者：
Wicht, J.
中科院分区：
文献类型：
--
作者：
Jones, C. A.;Boronski, P.;Wicht, J.
提出了旋转球壳中完全非线性非弹性可压缩对流和动力作用的基准解。指定了三个基准。第一种是纯水动力情况，它在均匀漂移坐标系中是稳定的。第二种是自激饱和发电机解，也稳定在漂移框架中。第三种也是自激发电机，但在时间上是非定常的，它的瑞利数比稳态发电机基准高。针对这些基准测试了四个独立的代码，并发现了非常令人满意的一致性。这为测试新的非弹性代码提供了一个准确的参考标准。(C) 2011爱思唯尔公司版权所有。
Benchmark solutions for fully nonlinear anelastic compressible convection and dynamo action in a rotating spherical shell are proposed. Three benchmarks are specified. The first is a purely hydrodynamic case, which is steady in a uniformly drifting frame. The second is a self-excited saturated dynamo solution, also steady in a drifting frame. The third is again a self-excited dynamo but is unsteady in time, and it has a higher Rayleigh number than the steady dynamo benchmark. Four independent codes have been tested against these benchmarks, and very satisfactory agreement has been found. This provides an accurate reference standard against which new anelastic codes can be tested. (C) 2011 Elsevier Inc. All rights reserved.