We present a class of discontinuous Galerkin methods for the incompressible Navier–Stokes equations yielding exactly divergence-free solutions. Exact incompressibility is achieved by using divergence-conforming velocity spaces for the approximation of the velocities. The resulting methods are locally conservative, energy-stable, and optimally convergent. We present a set of numerical tests that confirm these properties. The results of this note naturally expand the work in Cockburn et al. (2005) Math. Comp. 74, 1067–1095.
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Bernardo Cockburn, supported in part by NSF Grant DMS-0411254.
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Cockburn, B., Kanschat, G. & Schötzau, D. A Note on Discontinuous Galerkin Divergence-free Solutions of the Navier–Stokes Equations. J Sci Comput 31, 61–73 (2007). https://doi.org/10.1007/s10915-006-9107-7
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DOI: https://doi.org/10.1007/s10915-006-9107-7