@misc{MelettiAbideHarlanderetal., author = {Meletti, Gabriel and Abide, St{\´e}phane and Harlander, Uwe and Raspo, Isabelle and St{\´e}phane Viazzo, St{\´e}phane}, title = {On the influence of the heat transfer at the free surface of a thermally driven rotating annulus}, series = {Physics of fluids}, volume = {37}, journal = {Physics of fluids}, publisher = {AIP Publishing}, address = {College Park, MD}, issn = {1089-7666}, doi = {10.1063/5.0248712}, pages = {1 -- 16}, abstract = {Experiments on rotating annuli that are differentially heated in the radial direction have largely contributed to a better understanding of baroclinic instabilities. This configuration creates waves at a laboratory scale that are related to atmospheric circulations. Pioneer studies in baroclinic tanks have shown that experiments with low aspect ratios are more suitable to reproduce small-scale inertia gravity waves, but these tanks have a larger free surface, which leads to higher interactions with their surrounding environment. Considering the heat transferred through the free surface, the present work investigates its impacts on the baroclinic instability using direct numerical simulations (DNS).}, language = {en} } @inproceedings{MalteseMelettideOliveiraRaspoSeeligetal., author = {Maltese Meletti de Oliveira, Gabriel and Raspo, Isabelle and Seelig, Torsten and Viazzo, Stephane and Randriamampianina, Anthony and Abide, St{\´e}phane and Krebs, Andreas and Harlander, Uwe}, title = {On the instability of radially sheared and axially stratified vortex flow}, series = {European Geosciences Union, General Assembly 2018, Vienna, Austria}, booktitle = {European Geosciences Union, General Assembly 2018, Vienna, Austria}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, language = {en} } @misc{MalteseMelettideOliveiraAbideViazzoetal., author = {Maltese Meletti de Oliveira, Gabriel and Abide, St{\´e}phane and Viazzo, Stephane and Krebs, Andreas and Harlander, Uwe}, title = {Experiments and long-term high-performance computations on amplitude modulations of strato-rotational flows}, series = {Geophysical \& Astrophysical Fluid Dynamics}, volume = {115}, journal = {Geophysical \& Astrophysical Fluid Dynamics}, number = {3}, issn = {1029-0419}, doi = {10.1080/03091929.2020.1795647}, pages = {297 -- 321}, language = {en} } @misc{MalteseMelettideOliveiraAbideViazzoetal., author = {Maltese Meletti de Oliveira, Gabriel and Abide, St{\´e}phane and Viazzo, Stephane and Harlander, Uwe}, title = {A parameter study of strato-rotational low-frequency modulations: impacts on momentum transfer and energy distribution}, series = {Philosophical transactions of the Royal Society : Series A, Mathematical, physical and engineering sciences}, volume = {381}, journal = {Philosophical transactions of the Royal Society : Series A, Mathematical, physical and engineering sciences}, number = {2246}, issn = {1364-503X}, doi = {10.1098/rsta.2022.0297}, language = {en} } @misc{HarlanderSukhanovskiiAbideetal., author = {Harlander, Uwe and Sukhanovskii, Andrei and Abide, St{\´e}phane and Borcia, Ion-Dan and Popova, Elene and Rodda, Costanza and Vasiliev, Andrei and Vincze, Miklos}, title = {New Laboratory Experiments to Study the Large-Scale Circulation and Climate Dynamics}, series = {Atmosphere}, volume = {14}, journal = {Atmosphere}, number = {5}, doi = {10.3390/atmos14050836}, pages = {19}, abstract = {The large-scale flows of the oceans and the atmosphere are driven by a non-uniform surface heating over latitude, and rotation. For many years scientists try to understand these flows by doing laboratory experiments. In the present paper we discuss two rather new laboratory experiments designed to study certain aspects of the atmospheric circulation. One of the experiments, the differentially heated rotating annulus at the Brandenburg University of Technology (BTU) Cottbus, has a cooled inner cylinder and a heated outer wall. However, the structure of the atmospheric meridional circulation motivates a variation of this "classical" design. In the second experiment described, operational at the Institute of Continuous Media Mechanics (ICMM) in Perm, heating and cooling is performed at different vertical levels that resembles more the atmospheric situation. Recent results of both experiments are presented and discussed. Differences and consistencies are highlighted. Though many issues are still open we conclude that both setups have their merits. The variation with heating and cooling at different levels might be more suited to study processes in the transition zone between pure rotating convection and the zone of westerly winds. On the other hand, the simpler boundary conditions of the BTU experiment make this experiment easier to control.}, language = {en} }