Heat-Up of Rotating Stratified Fluid

概要

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A heat-up process of a rotating stratified fluid in a circular cylinder which occurs as a response to a small change of the side wall temperature is analyzed in a framework of the linearized Boussinesq approximation. A meridional circulation induced by the buoyancy layer along the side wall causes both a heat-up and a spin-up process of the inner, non-conducting inviscid fluid. These processes continue until a quasi-steady asymptotic state is reached. The time scale of the transient process tends to the heat-up time of a non-rotating stratified fluid for the case of the strong stratification, and to the spin-up time of the homogeneous fluid for the case of the order unity stratification. The initial meridional circulation, and the asymptotic distribution of the azimuthal velocity and the temperature are also given.
社団法人日本物理学会の論文
1973-06-05