Raising the time step 5x ran 1.9x faster; 10x ran no faster at all — the window implicit surface tension opens
·8 min read
Breaching the capillary time-step constraint leaves other ceilings standing. Janodet et al. (2025) measured the stability limit and the speed-up optimum at a density ratio of 1000.
[Paper Review] The Capillary Shackle Came Off and CFL 0.05 Was Still There — The Real Ceiling on VOF Interface Advection
·8 min read
Implicit surface tension breaks the capillary time-step limit, yet the compressive scheme carrying the colour function caps the time step at CFL 0.05.
Why Droplet Simulations Get Trapped by Δt — Solving Surface Tension Implicitly
·5 min read
Reproducing Janodet 2025, which breaks the capillary time-step shackle with implicit surface tension
[Paper Review] Two-Phase Flow Without a Poisson Solver — Coupling the General Pressure Equation with MSTACS
·7 min read
Swap the elliptic Poisson step for a hyperbolic GPE and run two-phase flow fully explicitly
Interface Capturing Methods: VOF vs Level Set vs Diffuse Interface
·4 min read
Comparing the principles, pros/cons, and applications of three representative interface capturing techniques in compressible multiphase flows.