An experimental study of regime transitions in a differentially heated baroclinic annulus with flat and sloping bottom topographies

@article{Vincze2014AnES,
  title={An experimental study of regime transitions in a differentially heated baroclinic annulus with flat and sloping bottom topographies},
  author={Mikl{\'o}s Vincze and Uwe Harlander and Thomas von Larcher and Christoph Egbers},
  journal={Nonlinear Processes in Geophysics},
  year={2014},
  volume={21},
  pages={237-250}
}
Abstract. A series of laboratory experiments has been carried out in a thermally driven rotating annulus to study the onset of baroclinic instability, using horizontal and uniformly sloping bottom topographies. Different wave flow regimes have been identified and their phase boundaries – expressed in terms of appropriate non-dimensional parameters – have been compared to the recent numerical linear stability analysis of von Larcher et al. (2013). In the flat bottom case, the numerically… 

Benchmarking in a rotating annulus : a comparative experimental and numerical study of baroclinic wave dynamics

The differentially heated rotating annulus is a widely stud ied tabletop-size laboratory model of the general mid-latitude atmospheric circulation. The two most releva nt factors of cyclogenesis,

Numerical simulations of baroclinic driven flows in a thermally driven rotating annulus using the immersed boundary method

We present results of numerical simulations of baroclinic driven flows in the thermally driven rotating annulus using the immersed boundary method for modeling of the boundary conditions. The

Double-diffusive convection and baroclinic instability in a differentially heated and initially stratified rotating system: the barostrat instability

A water-filled differentially heated rotating annulus with initially prepared stable vertical salinity profiles is studied in the laboratory. Based on two-dimensional horizontal particle image

Regimes of Axisymmetric Flow and Scaling Laws in a Rotating Annulus with Local Convective Forcing

We present a numerical study of axisymmetric flow in a rotating annulus in which local thermal forcing, via a heated annular ring on the outside of the base and a cooled circular disk in the centre

On the emergence and evolution of jets and vortices in turbulent planetary atmospheres

This thesis investigates the formation and evolution of jets andvortices in turbulent planetary atmospheres using a dual approach ofhigh-resolution numerical simulations and novel

Baroclinic, Kelvin and inertia-gravity waves in the barostrat instability experiment

Abstract The differentially heated rotating annulus is a laboratory experiment historically designed for modelling large-scale features of the mid-latitude atmosphere. In the present study, we

Cyclonic and anticyclonic rotation in a cylinder cooled inhomogeneously on the top.

This work studies the development of vortical structures generated in a rotating cylinder non-homogeneously cooled on the top with a force balance analysis to contribute to the understanding of the relevance of thermal processes in tornadogenesis.

A rotating annulus driven by localized convective forcing: a new atmosphere-like experiment

We present an experimental study of flows in a cylindrical rotating annulus convectively forced by local heating in an annular ring at the bottom near the external wall and via a cooled circular disk

Experimental study of rotating convection in the presence of bi-directional thermal gradients with localized heating

We conduct experiments on the convective dynamics of a rotating fluid in a novel configuration, which comprises of a cylindrical annulus with peripheral spot heating at the bottom on the outer edge

Convection in rotating flows with simultaneous imposition of radial and vertical temperature gradients

Convection in rotating flows with simultaneous imposition of radial and vertical temperature gradients Ayan Kumar Banerjee 1 , Siddhesh Tirodkar 2 , Amitabh Bhattacharya 1,2 , Sridhar Balasubramanian

References

SHOWING 1-10 OF 31 REFERENCES

Baroclinic waves in a container with sloping end walls

  • P. J. Mason
  • Environmental Science, Physics
    Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences
  • 1975
The effects of sloping upper and lower boundaries on baroclinic waves in a differentially heated rotating fluid annulus have been studied experimentally. Measurements have been made of the internal

A laboratory study of baroclinic waves and turbulence in an internally heated rotating fluid annulus with sloping endwalls

New laboratory experiments have been performed in a rotating fluid annulus, subject to internal heating and sidewall cooling, in which a radial depth gradient has been created by the inclusion of

The influence of a sloping bottom endwall on the linear stability in the thermally driven baroclinic annulus with a free surface

We present results of a linear stability analysis of non-axisymmetric thermally driven flows in the classical model of the rotating cylindrical gap of fluid with a horizontal temperature gradient

PIV- and LDV-measurements of baroclinic wave interactions in a thermally driven rotating annulus

Already in the 1950s, an elegant laboratory experiment had been designed to understand how the atmospheric circulation transports heat from equatorial to polar latitudes. It consists of a cooled

Irregularity and singular vector growth of the differentially heated rotating annulus flow

The problem of weather prediction is to a large part determined by the large-scale atmospheric flow. This flow is irregular but not fully turbulent. The irregularity can be related to instability,

Wave interactions and the transition to chaos of baroclinic waves in a thermally driven rotating annulus

  • W. FrühP. Read
  • Physics, Environmental Science
    Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences
  • 1997
Most of the observed regimes were consistent with low–dimensional dynamics involving a limited number of domain–filling modes, which can be represented in phase space reconstructions and characterized by invariants such as attractor dimensions and the Lyapunov exponents.

Baroclinic instability of flows along sloping boundaries

Abstract In the two-layer quasi-geostrophic model with boundaries sloping perpendicular to the basic flow, the ratios of the slopes of the bottom and the top to that of the interface between the

Experiments on the structure of baroclinic waves and zonal jets in an internally heated, rotating, cylinder of fluid

In this paper we report a laboratory investigation of the motion within a rotating cylinder of fluid subject to internal heating and to cooling at the outer cylindrical sidewall. The internal heating

Turbulence, waves, and jets in a differentially heated rotating annulus experiment

We report an analog laboratory study of planetary-scale turbulence and jet formation. A rotating annulus was cooled and heated at its inner and outer walls, respectively, causing baroclinic

Simultaneous PIV and thermography measurements of partially blocked flow in a differentially heated rotating annulus

A radial barrier has been mounted in a differentially heated rotating annulus that partially blocks the azimuthal flow component. The experiment can be seen as an analog to geophysical flows with