Gallery

A weakly compressible solver with AMR captures the formation of a liquid sheet as water strikes a spoon. The simulation runs on one GPU, using 4 × 4 × 4 cells per AMR block and about one-twentieth of the cells required by a uniform grid.

Surfactant is transported through the bulk liquid and along interfaces, including adsorption and desorption. A multi-phase-field formulation stabilises the films and enables simulations of interacting, deforming bubbles.

A dam-break simulation with approximately 120 million cells. The advancing water impacts a downstream pool and produces strong wave breaking, while the explicit weakly compressible solver remains stable.

A weakly compressible two-phase flow simulation captures the crown-shaped interface formed by the balance of surface tension, viscosity and inertia.

AMR resolves the thin liquid film formed when a rising bubble reaches the free surface. In a Newtonian liquid without surfactants, gravity-driven drainage progressively thins the film until it breaks.

A droplet-impact benchmark for a viscoelastic fluid. The constitutive model represents polymer chains as nonlinear springs and is coupled to the multiphase flow solver.

Interface-adapted AMR and dynamic domain decomposition enable high-resolution simulations across multiple GPUs. The results reproduce the onset of jet disturbances and their dependence on Reynolds number observed in experiments. Colours show the changing computational regions assigned to each GPU.

An AMR simulation of a jet entering at more than 100 m/s, showing strong interfacial disturbances and the formation of small droplets.

The Navier–Stokes equations and interface capturing resolve an expanding liquid film as it becomes thinner. AMR maintains at least six cells across the film in this simulation, allowing its internal flow to be resolved.

Three-dimensional porous structures reconstructed from X-ray CT images are used to create numerical experiments of multiphase flow at the pore scale.