RT journal article T1 Property-preserving numerical approximation of a Cahn–Hilliard–Navier–Stokes model with variable density and degenerate mobility A1 Acosta Soba, Daniel A1 Guillén González, Francisco A1 Rodríguez Galván, José Rafael A1 Wang, J. A2 Matemáticas K1 Mass-conservation K1 Discrete pointwise bounds K1 Discrete energy stability K1 Finite elements K1 Discontinuous Galerkin K1 Upwind scheme AB In this paper, we present a new computational framework to approximate a Cahn–Hilliard--Navier--Stokes model with variable density and degenerate mobility that preserves the mass of themixture, the pointwise bounds of the density and the decreasing energy. This numerical schemeis based on a finite element approximation for the Navier–Stokes fluid flow with discontinuouspressure and an upwind discontinuous Galerkin scheme for the Cahn–Hilliard part. Finally, severalnumerical experiments such as a convergence test and some well-known benchmark problems areconducted. PB Elsevier SN 0168-9274 YR 2024 FD 2024-11-14 LK http://hdl.handle.net/10498/35726 UL http://hdl.handle.net/10498/35726 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 10-may-2026