Study of plane Couette flow in stratified fluid
The mechanism of turbulent plane Couette flow with a negative temperature gradient was examined theoretically. First, the instability of fluid under various conditions was examined by utilizing linear and nonlinear numerical models. From the results, it was confirmed that constant shear has a stabilizing effect on the perturbations. It is shown that the neutral Rayleigh numbers, found from linear and nonlinear models, are almost identical for non-longitudinal rolls, but quite different for longitudinal rolls. The heat and momentum flux for the flow in a certain range of Reynolds numbers (Re≤500) ...
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