Baroclinic instability of an initially stratified layer EuHIT Funded Project

Team

Uwe Harlander
BTU Cottbus-Senftenberg, Cottbus, Germany
Miklos Vincze
Hungarian Academy of Sciences, Budapest, Hungary

Overview

Research Infrastructure
Cottbus Turbulence Experiment Facilities, Germany
Facilities used
Baroclinic Wave Tank (CoGeoF1)
Project leader
Patrice Le Gal
CNRS - Aix Marseille University, Marseille, France

Abstract

The main goal of this project is to initiate a collaboration between the Marseille and Cottbus research groups. The novelty of the project is to generate a thermal baroclinic instability on the Cottbus CoGeoF1 experimental installation but on an initially stratified layer. The vertical stratification will be created using salted water that can be a linear or a non linear function of the vertical axis. We are aware that many problems may occur as double diffusion convection for instance. Therefore, the first step in our analysis will be to analyze the feasability of such an experiment. The possibility to generate a shear instability of Kelvin-Helmhotz type (instead of a thermal baroclinic instability) by implementing a non-rotating upper-lid or radial localized jets will also be studied.