中国物理B ›› 2013, Vol. 22 ›› Issue (5): 50204-050204.doi: 10.1088/1674-1056/22/5/050204
刘萍a, 李子良b
Liu Ping (刘萍)a, Li Zi-Liang (李子良)b
摘要: The symmetries and the exact solutions of the (3+1)-dimensional nonlinear incompressible non-hydrostatic Boussinesq (INHB) equations, which describe the atmospheric gravity waves, are studied in this paper. The calculation on symmetry shows that the equations are invariant under the Galilean transformations, the scaling transformations, and the space-time translations. Three types of symmetry reduction equations and similar solutions for the (3+1)-dimensional INHB equations are proposed. Traveling and non-traveling wave solutions of the INHB equations are demonstrated. The evolutions of the wind velocities in latitudinal, longitudinal, and vertical directions with space-time are demonstrated. The periodicity and the atmosphere viscosity are displayed in the (3+1)-dimensional INHB system.
中图分类号: (Partial differential equations)