Multiscale and Directional Approach to Rotating Shear Flow
Résumé
Turbulence and stability in rotating shear flows is essential in many contexts ranging from engineering—e.g. turbomachinery or hydroelectric power generation—to geophysics and astrophysics. A statistical approach remains relevant, even assuming statistical homogeneity restricted to fluctuations [8], if a very large range of Reynolds numbers is investigated, until the highest ones, in contrast with DNS, and if strong anisotropy is accurately accounted for, in addition to a multi-scale approach, ignored in RANS.