3 papers
physics.flu-dyn2026
A term-by-term variational multiscale method with dynamic subscales for incompressible turbulent aerodynamics
Diego Escobar, Douglas Pacheco, Alejando Aguirre +1
Variational multiscale (VMS) methods offer a robust framework for handling under-resolved flow scales without resorting to problem-specific turbulence models. Here, we propose and…
math.NA2024
Unconditionally stable, linearised IMEX schemes for incompressible flows with variable density
Nicolás Espinoza-Contreras, Gabriel Barrenechea, Ernesto Castillo +1
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-implicit…
math.NA2023
Implicit-explicit schemes for incompressible flow problems with variable viscosity
Gabriel R. Barrenechea, Ernesto Castillo, Douglas R. Q. Pacheco
In this work we study different Implicit-Explicit (IMEX) schemes for incompressible flow problems with variable viscosity. Unlike most previous work on IMEX schemes, which focuses…