The existence and uniqueness of weak solution of the flow between two concentric rotating spheres |
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Authors: | Feng Weibing Ph D Li Kaitai |
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Institution: | (1) Shanghai Institute of Applied Mathematics and Mechanics, 200072 Shanghai, P R China;(2) Science School of Xi'an Jiaotong University, 710049 Xi'an, P R China |
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Abstract: | The unsteady axisymmetric incompressible flow between two concentric spheres was discussed in this paper. It is useful to most astrophysical, geophysical and engineering applications. In order to get the existence and uniqueness of weak solution of this flow with the stream_velocity form, firstly, the relations among the nonlinear terms in this equation is found; then, the existence is proved by an auxiliary semi_discrete scheme and a compactness argument. |
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Keywords: | Navier_Stokes equations stream function Galerkin method |
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