Transitions between turbulent states in rotating Rayleigh-Benard convection
arXiv:0901.2016 · doi:10.1103/PhysRevLett.103.024503
Abstract
Weakly-rotating turbulent Rayleigh-Benard convection was studied experimentally and numerically. With increasing rotation and large enough Rayleigh number an abrupt transition from a turbulent state with nearly rotation-independent heat transport to another turbulent state with enhanced heat transfer is observed at a critical inverse Rossby number . Whereas for the strength of the large-scale convection-roll is either enhanced or essentially unmodified depending on parameters, its strength is increasingly diminished beyond where it competes with Ekman vortices that cause vertical fluid transport and thus heat-transfer enhancement.
5 pages, 4 figures
References in corpus (4)
- Large scale dynamics in turbulent Rayleigh-Benard convection
- Generation of magnetic field by dynamo action in a turbulent flow of liquid sodium
- Prandtl-, Rayleigh-, and Rossby-number dependence of heat transport in turbulent rotating Rayleigh-Benard convection
- Scaling in large Prandtl number turbulent thermal convection
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- Oscillatory instability and fluid patterns in low-Prandtl-number Rayleigh-Bénard convection with uniform rotation
- Sharp transitions in rotating turbulent convection: Lagrangian acceleration statistics reveal a second critical Rossby number
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- Entropy and energy spectra in low-Prandtl-number convection with rotation
- Critical Prandtl number for Heat Transfer Enhancement in Rotating Convection
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- Effect of weak rotation on large-scale circulation cessations in turbulent convection
- Turbulent convection in rotating slender cells
- Subcritical behaviour in double diffusive convection within the diffusive regime
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- Geostrophic convective turbulence: The effect of boundary layers
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- Optimized Setup for 2D Convection Experiments in Thin Liquid Films
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- Turbulence phenomena for viscous fluids by a phase field model. Vorticies and instability