Abstract
In this paper, we consider equatorial flows with Coriolis and centripetal forces, with constant vorticity beneath a two-dimensional solitary wave and above a flat bed in the -plane approximation equations. We prove that the flow must be steady, two-dimensional, decayed and the vorticity may have only one nonzero component, which points in the horizontal direction orthogonal to the direction of wave propagation. Moreover, based on the vorticity equation and analytical techniques, we prove that the free surface of the flow exhibiting constant horizontal vorticity can only be two-dimensional.
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