Adaptive mesh refinement for singular solutions of the incompressible Euler equations

被引:67
作者
Grauer, R [1 ]
Marliani, C [1 ]
Germaschewski, K [1 ]
机构
[1] Univ Dusseldorf, Inst Theoret Phys 1, D-40225 Dusseldorf, Germany
关键词
D O I
10.1103/PhysRevLett.80.4177
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The occurrence of a finite time singularity in the incompressible Euler equations in three dimensions is studied numerically using the technique of adaptive mesh refinement. As opposed to earlier treatments, a prescribed accuracy is guaranteed over the entire integration domain. A singularity in the vorticity could he traced down to five levels of refinement which corresponds to a resolution of 2048(3) mesh points in a nonadaptive treatment. The growth of vorticity fits a power law behavior proportional to 1/(T* - t) where T* denotes the time when the singularity occurs.
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页码:4177 / 4180
页数:4
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