Semi-implicit and space–time DG methods for the incNavier–Stokes equations on staggered grids

What is it about?

Highlights • Spectral staggered space–time DG schemes for the incompressible Navier–Stokes equations. • Nodal tensor product basis allows to write the scheme as a sequence of simple 1D operators. • The staggered grid allows to obtain a pressure system with the minimum computational stencil. • The only unknown is the scalar pressure, the resulting system is symmetric and positive definite. • The pressure system can be solved by a matrix-free CG method without any preconditioner.

Featured Image