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Monday, February 27, 2012
1:00 PM - 2:00 PM
CNLS Conference Room (TA-3, Bldg 1690)

Postdoc Seminar

Analyzing Rotating Stratified Boussinseq Flows

Hussein Aluie
T-5: Applied Mathematics and Plasma Physics and CNLS

We use high-resolution simulations of Boussinesq flows, forced in the large-scales, with fixed rotation and stable stratification along the vertical axis, to study the cascades of energy and potential enstrophy to small-scales in three different regimes of stratification and rotation. In each of the parameter regimes, we study the anisotropy of fluxes, scale-locality of the corresponding transfers, and extract the dominant triadic interaction between wave and vortical linear eigenmodes responsible the fluxes. In addition, we analyze the spatial distribution of the cascades using a coarse-graining approach which allows simultaneous resolution of the dynamics in scale and in space. This is joint work with S. Kurien (T-5).

Host: Humberto C Godinez Vazquez, Mathematical Modeling and Analysis Theoretical Division, 5-9188