Acta mathematica scientia,Series A ›› 2023, Vol. 43 ›› Issue (4): 1037-1061.

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Traveling Asymmetric Vortex Pairs of the Generalized Surface Quasi-Geostrophic Equation

Wu Wenju1(),Fan Boquan2,*()   

  1. 1School of Mathematics and Information Science, Guangzhou University, Guangzhou 510006
    2Institute of Applied Mathematics, Chinese Academy of Sciences, Beijing 100190
  • Received:2022-09-20 Revised:2023-02-14 Online:2023-08-26 Published:2023-07-03
  • Contact: Boquan Fan E-mail:wuchrysanthemum@163.com;2225409634@qq.com

Abstract:

In this paper, we study the existence of counter-rotating vortex pairs with different scales and different distributions for the generalized surface quasi-geostrophic (gSQG) equation by using vorticity method. We construct a family of traveling asymmetric vortex pairs by using the variational method, and analyze the asymptotic behaviors of the family of vortex pairs.

Key words: The generalized surface quasi-geostrophic equation, Traveling-wave solutions, Vortex method

CLC Number: 

  • O175.2
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