中国物理B ›› 2010, Vol. 19 ›› Issue (8): 80203-080203.doi: 10.1088/1674-1056/19/8/080203

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Symmetry analysis and explicit solutions of the (3+1)-dimensional baroclinic potential vorticity equation

黄菲1, 胡晓瑞2, 陈勇3   

  1. (1)Department of Marine Meteorology, Ocean University of China, Qingdao 266003, China; (2)Institute of Theoretical Computing, East China Normal University, Shanghai 200062, China; (3)Institute of Theoretical Computing, East China Normal University, Shanghai 200062, China;Nonlinear Science Center and Department of Mathematics, Ningbo University, Ningbo 315211, China
  • 收稿日期:2009-12-21 修回日期:2010-01-22 出版日期:2010-08-15 发布日期:2010-08-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10735030, 90718041 and 40975038), Shanghai Leading Academic Discipline Project (Grant No. B412), Program for Changjiang Scholars and Innovative Research Team in University (Grant No. IRT0734).

Symmetry analysis and explicit solutions of the (3+1)-dimensional baroclinic potential vorticity equation

Hu Xiao-Rui(胡晓瑞)a), Chen Yong(陈勇) a) b)†ger, and Huang Fei(黄菲)c)   

  1. a Institute of Theoretical Computing, East China Normal University, Shanghai 200062, China ; b Nonlinear Science Center and Department of Mathematics, Ningbo University, Ningbo 315211, China; c Department of Marine Meteorology, Ocean University of China, Qingdao 266003, China
  • Received:2009-12-21 Revised:2010-01-22 Online:2010-08-15 Published:2010-08-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10735030, 90718041 and 40975038), Shanghai Leading Academic Discipline Project (Grant No. B412), Program for Changjiang Scholars and Innovative Research Team in University (Grant No. IRT0734).

摘要: This paper investigates an important high-dimensional model in the atmospheric and oceanic dynamics-(3+1)-dimensional nonlinear baroclinic potential vorticity equation by the classical Lie group method. Its symmetry algebra, symmetry group and group-invariant solutions are analysed. Otherwise, some exact explicit solutions are obtained from the corresponding (2+1)-dimensional equation, the inviscid barotropic nondivergent vorticy equation. To show the properties and characters of these solutions, some plots as well as their possible physical meanings of the atmospheric circulation are given.

Abstract: This paper investigates an important high-dimensional model in the atmospheric and oceanic dynamics-(3+1)-dimensional nonlinear baroclinic potential vorticity equation by the classical Lie group method. Its symmetry algebra, symmetry group and group-invariant solutions are analysed. Otherwise, some exact explicit solutions are obtained from the corresponding (2+1)-dimensional equation, the inviscid barotropic nondivergent vorticy equation. To show the properties and characters of these solutions, some plots as well as their possible physical meanings of the atmospheric circulation are given.

Key words: (3+1)-dimensional nonlinear baroclinic potential vorticity equation, symmetry group, group-invariant solution, explicit solution

中图分类号:  (General circulation)

  • 92.60.Bh
92.10.ab (General circulation)