TL;DR Why this case In October we released precice_aster, a GPL-3.0 connector that couples code_aster to OpenFOAM, CalculiX and any other preCICE participant, for both fluidโstructure interaction (FSI) and conjugate heat transfer. We presented it in a webinar with AsterLab and validated it on the preCICE tutorials: the perpendicular flap, Read more
TL;DR Why this comparison Every rotating-machinery CFD job starts with the same choice: freeze the rotor in a multiple reference frame (MRF) and run steady, or actually move the mesh and pay for a transient run. OpenFOAM now offers two mature sliding-mesh interfaces that live in the two OpenFOAM distributions: Read more
Palabos (lattice Boltzmann) vs OpenFOAM on cloudHPC: cylinder validation and a 256ยณ TaylorโGreen vortex with run times, scaling and real costs.
MPPICInterFoam reproduces a clear-water jet to within the measurement uncertainty, once an inlet error of ours is corrected, but it misses both sediment experiments we tested: a dense sand cloud and a dilute particle-laden jet. In the dilute jet, the particle flux on the axis at 41 nozzle diameters is Read more
About 95 RANS simulations of the NASA backward-facing step in OpenFOAM and code_saturne: which mesh defects break convergence, and what limiters really do.
We ran the Steckler room fire (Test 14) in FDS and OpenFOAM 14 on the same grid, with a volumetric heat source and a passive soot scalar in OpenFOAM: temperatures, door flows, soot density, visibility and cost.
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.
The classic design loop in CFD goes like this: guess a shape, mesh it, simulate it, look at the result, tweak the geometry, repeat. It works when a design has three or four parameters. It stops working when the shape is described by dozens or hundreds of variables, because nobody Read more
“OpenFOAM” isn’t one piece of software with one release schedule โ it’s a name shared by three actively developed, independently governed codebases that diverged from the same origin and have been evolving separately for over a decade. On cloudHPC we now provide foam-extend 5.0 alongside both the OpenFOAM Foundation release Read more
One of the greatest strengths of OpenFOAM is its open architecture. Whether you are developing a novel turbulence model, crafting a tailored boundary condition, or building a brand-new solver from scratch, OpenFOAM gives you total freedom to extend C++ classes to fit your research or industrial needs. However, moving custom Read more