Driven inertial oscillations in spherical shells

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Institute of Physics, University of Bayreuth, D-95440 Bayreuth, Germany [1 ]
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Phys Rev E. | / 2 PART A卷 / 1789-1794期
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The flow of a fluid in a rapidly rotating spherical shell whose rotation rate is modulated sinusoidally in time is simulated numerically. Different inertial modes are excited as the modulation frequency is varied. The inertial modes are structured by internal layers. Internal layers are reflected at the boundaries such that at certain modulation frequencies, the layers are focused onto attractors after multiple reflections. The geometric properties of these attractors and their relevance for the response of the fluid is investigated.
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