Fire Dynamics Simulator (FDS) has been the standard CFD tool for fire and smoke modeling for two decades โ 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
In the world of OpenFOAM, modeling how particles interact with fluids is a classic challenge. While the standard DPMFoam (Discrete Particle Method) is great for dilute systems, it often struggles when particles get crowded. Thatโs where MPPICFoam and its dynamic-mesh sibling, MPPICDyMFoam, step in. These solvers use the Multiphase Particle-In-Cell Read more
Handling Particle Temperature Errors in FDS: A Troubleshooting Guide If you are running a fire simulation involving sprinklers, water mist, or fuel sprays, you might eventually run into a specific pair of warnings in your .out file: WARNING Delta TMP_G.Mesh: YY Particle: 1 Tag: XXXXX WARNING TMP_G_N < TMP_D_N.Mesh: YY Read more
Computational Fluid Dynamics (CFD) has become indispensable in designing turbomachinery, enabling engineers to analyze complex flow phenomena and optimize components like fans and impellers. Modern CFD algorithms allow for running advanced transient analyses with sophisticated turbulence modeling, such as hybrid RANS/LES, demanding substantial computational resources. Optimization studies, like the one Read more
We are thrilled to announce a significant expansion of our cloudHPC platform with the introduction of new GPU-equipped instances. This release marks a major milestone in our commitment to providing powerful and flexible high-performance computing solutions for our users. By integrating NVIDIA T4 GPUs, cloudHPC now offers enhanced capabilities for Read more
In the demanding world of engineering simulations, where complex models and sensitive design data are the norm, security isn’t just a feature โ it’s a fundamental necessity. The integrity and confidentiality of your intellectual property, your research findings, and your client data are paramount. This is where international standards like ISO Read more
Ever watched a complex CFD simulation crawl, or an FDS fire model take hours longer than you’d hoped? You might immediately blame your CPU’s clock speed or the amount of RAM you have. While these are certainly important, there’s a hidden hero in your computer’s architecture that plays a monumental Read more
Tired of spending hours manually post-processing your simulation results? Do you find yourself repeating the same steps every time you need to visualize your data from OpenFOAM, VTK, VTM, or MED files? Well, say goodbye to tedious tasks and hello to streamlined efficiency with CloudHPC’s automated post-processing workflow! CloudHPC is Read more
Hey engineering and computational enthusiasts! If youโve ever delved into the world of finite element analysis (FEA) or computational fluid dynamics (CFD), you know that a good mesh is the foundation upon which accurate simulations are built. But creating these meshes โ the intricate grids that discretize your geometric models Read more
Computational Fluid Dynamics (CFD) is a powerful tool for simulating fluid flow, but accurately capturing turbulence โ the chaotic, unpredictable nature of many real-world flows โ remains a significant challenge. While numerous turbulence models exist, the k-ฮต (k-epsilon) model stands out as one of the most widely used, striking a Read more