Generalized Kirchhoff vortices

Generalized Kirchhoff vortices
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广义基尔霍夫涡旋

DOI:
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发表时间:
1986
期刊:
影响因子:
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通讯作者:
G. Flierl
G. Flierl
中科院分区:
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文献类型:
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作者:
L. Polvani;G. Flierl

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本文给出了欧拉方程的一族精确解:它们是Kirchhoff涡在N个共焦椭圆上的推广。特别注意N=2的情况,在这种情况下,稳定性的分析方法与洛夫[伦敦数学会论文集1,XXV 18(1893)]对基尔霍夫涡所用的方法相似。结果与相应的圆形问题进行了比较。
A family of exact solutions of the Euler equations is presented: they are generalizations of the Kirchhoff vortex to N confocal ellipses. Special attention is given to the case N=2, for which the stability is analyzed with a method similar to the one used by Love [Proc. London Math. Soc. 1, XXV 18 (1893)] for the Kirchhoff vortex. The results are compared with those for the corresponding circular problem.