Chapitre D'ouvrage Année : 2014

High resolution method for direct numerical simulation of the instability and transition in a baroclinic cavity

Résumé

Baroclinic instability is recognized to be one of the dominant energetic processes in the large-scale atmospheres of terrestrial planets, such as Earth and Mars, e.g., Pierrehumbert and Swanson, and in the oceans. With the exponential increase in computing power these last decades, direct numerical simulation has become an indispensable tool for investigating the complex spatiotemporal behaviors of baroclinic instability in the laboratory, complementarily with experiments. It is useful to explore the different nonlinear flow regimes in the parameter space in order to accurately delineate a bifurcation diagram. Moreover, direct numerical simulation provides relevant information about the small-scale fluctuations that progressively destroy the regularity of the flow during the transition toward geostrophic turbulence.
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Dates et versions

hal-00993357 , version 1 (29-12-2024)

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Anthony Randriamampianina, Emilia Crespo del Arco. High resolution method for direct numerical simulation of the instability and transition in a baroclinic cavity. Thomas von Larcher; Paul D. Williams. Modelling atmospheric and oceanic flows: insights from laboratory experiments and numerical simulations, Wiley, 2014, American Geophysical Union Series, 978-1-118-85593-5. ⟨10.1002/9781118856024.ch16⟩. ⟨hal-00993357⟩
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