| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Relaxation Oscillation of Thermal Convection in Rotating Cylindrical Annulus |
| TAO Jian-Jun, TAN Wen-Chang |
| SKLTCS and CAPT, Department of Mechanics and Aerospace Engineering, College of Engineering, Peking University, Beijing 100871 |
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| Cite this article: |
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TAO Jian-Jun, TAN Wen-Chang 2010 Chin. Phys. Lett. 27 034706 |
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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.
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| Keywords:
47.20.Bp
47.20.Qr
47.27.Te
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Received: 09 October 2009
Published: 09 March 2010
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| PACS: |
47.20.Bp
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(Buoyancy-driven instabilities (e.g., Rayleigh-Benard))
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47.20.Qr
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(Centrifugal instabilities (e.g., Taylor-Couette flow))
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47.27.te
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(Turbulent convective heat transfer)
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