Stream virtual elements for the Navier-Stokes system
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In this talk, we consider the two dimensional Navier-Stokes equations. We write a weak formulation in terms of the stream function of the velocity field. Next, we propose C^1 -virtual element methods to discretize this formulation. Moreover, algorithms to compute the velocity, pressure and vorticity fields as a postprocess of the discrete stream function are proposed. Finally, we report several numerical experiments on different polygonal meshes