Elmer FEM is an open-source finite element code from CSC (Finland) that many engineers use for heat transfer, structures, electromagnetics and fluids. Before trusting any solver for real work, it is worth asking a simple question: does it solve the equations it claims to solve, and does the error shrink Read more
Short version. We built a 20.7-million-cell large-eddy simulation (LES) of the flow past a circular cylinder at Re = 3900, ran it with code_saturne 9.0.1 on six cloudHPC configurations (32, 48 and 96 cores on hypercore; 32, 48 and 112 cores on highcore) and repeated every configuration with two mesh Read more
FDS, OpenFOAM, code_aster, EnergyPlus, OpenRadioss and more: describe what you need in plain language, and your AI assistant prepares, checks, launches and analyses the simulation on cloudHPC. Running a simulation in the cloud has always meant many small technical steps: compressing the case, choosing vCPU and RAM, checking the input Read more
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
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
On September 8, 2026, OpenAI announced that an internal AI system had produced a proof that the three-dimensional incompressible Navier–Stokes equations can develop a singularity in finite time. The announcement generated significant attention — much of it inaccurate. This post lays out what was actually claimed, what it means for Read more
Fire Dynamics Simulator (FDS) has been the standard CFD tool for fire and smoke modeling for two decades — and for just as long, its pressure solve has been a CPU-bound bottleneck on large domains. FireX, NIST’s experimental GPU-accelerated development branch of FDS, is the first serious attempt to change Read more
“OpenFOAM” isn’t one piece of software with one release schedule — 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
Coastlines are where the most damaging events in coastal engineering happen in hours, not years: a single storm can carve meters of dune out of a beach, breach a barrier island, or push a surge far enough inland to flood a community that hasn’t seen water in a generation. Predicting Read more
Multi-domain physical system modeling — electrical, mechanical, thermal, hydraulic, control — often gets split across separate tools that don’t talk to each other well. OpenModelica, the open-source implementation of the Modelica language developed by the Open Source Modelica Consortium (OSMC), was built to solve exactly that problem: one equation-based language, Read more