摘要Chaotic thermal convection in a rapidly rotating cylindrical annulus is investigated numerically and the relaxation oscillation state is obtained under the no-slip boundary condition. The dominant frequency of the oscillation is inherited directly from a vacillating mode, whose nonlinear interaction with another high-frequency vacillating mode leads to the chaotic state at high Rayleigh numbers through an RTN-type route. Furthermore, the effects of Coriolis parameter and Rayleigh number on the quasi-periodic burst of kinetic energy are discussed as well.
Abstract：Chaotic thermal convection in a rapidly rotating cylindrical annulus is investigated numerically and the relaxation oscillation state is obtained under the no-slip boundary condition. The dominant frequency of the oscillation is inherited directly from a vacillating mode, whose nonlinear interaction with another high-frequency vacillating mode leads to the chaotic state at high Rayleigh numbers through an RTN-type route. Furthermore, the effects of Coriolis parameter and Rayleigh number on the quasi-periodic burst of kinetic energy are discussed as well.
TAO Jian-Jun;TAN Wen-Chang. Relaxation Oscillation of Thermal Convection in Rotating Cylindrical Annulus[J]. 中国物理快报, 2010, 27(3): 34706-034706.
TAO Jian-Jun, TAN Wen-Chang. Relaxation Oscillation of Thermal Convection in Rotating Cylindrical Annulus. Chin. Phys. Lett., 2010, 27(3): 34706-034706.
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2010, Vol. 27 
