Post-processing of solutions of incompressible Navier-Stokes equations on rotating spheres

Mahadevan Ganesh, Quoc Thong Le Gia


We describe a post-processing technique (requiring only solutions of linear stationary problems) to improve the resolution of Galerkin solutions of the time dependent nonlinear incompressible Navier--Stokes equations on the rotating unit sphere. Numerical experiments illustrate the advantage of this more efficient method to simulate higher modes to approximate the divergence-free velocity field.

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