On the De Gregorio modification of the Constantin-Lax-Majda model

On the De Gregorio modification of the Constantin-Lax-Majda model
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关于 Constantin-Lax-Majda 模型的 De Gregorio 修正

DOI:
10.1007/s00205-018-1298-1
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发表时间:
2019
影响因子:
2.5
通讯作者:
Sverak, Vladimir
Sverak, Vladimir
中科院分区:
数学1区
文献类型:
--
作者:
Jia, Hao;Stewart, Samuel;Sverak, Vladimir

文献摘要

相似文献

研究了单位圆上Constantin-Lax-Majda (CLM)模型的De Gregorio修正。德格雷戈里奥方程是。与CLM模型相反,数值模拟表明具有光滑初始数据的De Gregorio模型的解始终全局存在,并且以类似于无粘阻尼的方式一般收敛到平衡态。我们证明了这种行为发生在多种均衡附近。
We study a modification due to De Gregorio of the Constantin–Lax–Majda (CLM) model=on the unit circle. The De Gregorio equation is. In contrast with the CLM model, numerical simulations suggest that the solutions of the De Gregorio model with smooth initial data exist globally for all time, and generically converge to equilibria when, in a way resembling inviscid damping. We prove that such behavior takes place near a manifold of equilibria.