Unconditionally stable, linearised IMEX schemes for incompressible flows
with variable density
Unconditionally stable, linearised IMEX schemes for incompressible flows
with variable density
For the incompressible Navier--Stokes system with variable density and viscosity, we propose and analyse an IMEX framework treating the convective and diffusive terms semi-implicitly. This extends to variable density and second order in time some methods previously analysed for variable viscosity and constant density. We present three new schemes, both …