Characteristics of amplitude vacillation in a differentially heated rotating fluid annulus
- 1 February 1985
- journal article
- research article
- Published by Taylor & Francis in Geophysical & Astrophysical Fluid Dynamics
- Vol. 31 (3-4) , 247-281
- https://doi.org/10.1080/03091928508219271
Abstract
Experimental results are presented on the characteristics and occurrence of amplitude vacillation observed in the regular wave regime of a differentially heated rotating fluid annulus. The amplitude vacillation appears as the periodic oscillation of the amplitude and frequency of the dominant wave component and its harmonics and occurs, in general, adjacent to a transition to the next lowest wavenumber. The frequency spectra of the amplitude vacillations are characterized by the presence of two distinct frequencies, one from the vacillation and one from the drift of the wave; in general the amplitude vacillations observed can be said to be doubly periodic. The wave interference mechanism of amplitude vacillation is examined but no evidence was found which could be unambiguously interpreted in its favour.Keywords
This publication has 29 references indexed in Scilit:
- Experiments on the role of amplitude and phase modulations during transition to turbulenceJournal of Fluid Mechanics, 1982
- Spatial and temporal characteristics of modulated waves in the circular Couette systemJournal of Fluid Mechanics, 1982
- Doubly Periodic Circular Couette Flow: Experiments Compared with Predictions from Dynamics and SymmetryPhysical Review Letters, 1981
- A combined laboratory and numerical study of fully developed steady baroclinic waves in a cylindrical annulusQuarterly Journal of the Royal Meteorological Society, 1981
- Time-Dependent Modes of Behavior of Thermally Driven Rotating FluidsJournal of the Atmospheric Sciences, 1980
- Laboratory experiments and numerical calculations of baroclinic waves resulting from potential vorticity gradients at low taylor numberGeophysical & Astrophysical Fluid Dynamics, 1980
- Finite Amplitude Baroclinic InstabilityAnnual Review of Fluid Mechanics, 1979
- On the transition between axisymmetric and non-axisymmetric flow in a rotating liquid annulus subject to a horizontal temperature gradient: Hysteresis effects at moderate Taylor number and baroclinic waves beyond the eady cut-off at high Taylor numberGeophysical & Astrophysical Fluid Dynamics, 1978
- An experimental study of thermal convection in a rotating liquidPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1958
- Some experiments on thermal convection in a rotating liquidQuarterly Journal of the Royal Meteorological Society, 1953