We ran the classic dam break with an obstacle in OpenFOAM 14, OpenFOAM v2606 (with AMR) and DualSPHysics on cloudHPC: how close VOF and SPH come on the same geometry, against the experiment, and what each run cost.
Some flows don’t cooperate with a mesh. A wave breaking over a seawall, a dam failing catastrophically, debris tumbling through floodwater, a tank sloshing under motion — these are all problems where the free surface fragments, merges, and moves through large deformations that make traditional mesh-based CFD expensive or brittle Read more
Have you ever tried to walk quickly while carrying a full, shallow mug of hot coffee? You take a few steps, and suddenly the coffee starts rocking back and forth, amplifying with every stride until it spills over the edge. Congratulations, you’ve just experienced sloshing. While spilling coffee is an Read more
In the world of Computational Fluid Dynamics (CFD), we have long been “trapped” by the mesh. Whether you are simulating the splash of a breaking wave or the complex rotation inside a centrifugal pump, the mesh is often the bottleneck—taking days to generate and even longer to compute. Today, we’re Read more
When it comes to simulating the movement of matter, there isn’t a “one size fits all” approach. If you are modeling a landslide, a breaking wave, or a conveyor belt filled with minerals, the physics engine you choose determines the accuracy of your results. Two of the most powerful particle-based Read more