In a traditional HPC environment, launching an OpenFOAM simulation feels like a project in itself. You have to manage version sourcing, write manual decomposition scripts, and handle the tedious task of reconstructing parallel results. At cloudHPC.cloud, we’ve eliminated this overhead. When you run a simulation, our specialized OpenFOAM script takes Read more
In the world of OpenFOAM, generating a high-quality mesh is often 80% of the battle. While snappyHexMesh is incredibly powerful for snapping to complex geometries, getting those elusive, crisp boundary layers can feel like more of an art than a science. If your layers are collapsing or looking “jagged” around Read more
A technical deep dive into creating conformal solid-fluid interfaces using snappyHexMesh and SALOME. Introduction In the world of Computational Fluid Dynamics with OpenFOAM, moving from single-phase fluid flow to Conjugate Heat Transfer (CHT) is a significant step up in complexity. CHT involves the coupled simulation of heat transfer between a Read more
A crucial step in any CFD simulation is creating a good quality mesh. The mesh discretizes your geometry into small control volumes, and the accuracy and efficiency of your simulation depend heavily on its characteristics. Helyx-OS, with its powerful pre-processing tools, makes mesh generation accessible and efficient. This tutorial assumes Read more
Hexahedral Meshes (Hex-dominant, Structured, Unstructured Hex) – SNAPPYHEXMESH Hexahedral cells are 6-faced, 8-vertex elements (like bricks or cubes). Pros: Cons: Tetrahedral Meshes (Unstructured) – SALOME Tetrahedral cells are 4-faced, 4-vertex elements (like pyramids). Pros: Cons: The Common and Often “Best” Solution: Hybrid Meshes (Tetrahedral Core + Prism Layers) In modern Read more
Recently, the engineering community was treated to an insightful live session on YouTube titled “The Power of Open Source CFD in Engineering,” featuring esteemed guests Dr. Henry Weller and Dr. Jenya Collings from CFD Direct, the driving force behind OpenFOAM®, alongside Jousef Murad from cloudHPC. This discussion delved deep into the transformative Read more
Introduction Mesh generation is a critical step in the simulation and modeling process for various engineering and scientific applications. Open source mesh generation software has gained significant popularity due to its accessibility and flexibility. In this blog post, we will compare four prominent open source mesh generation tools: SnappyHexMesh, Salome, Read more
cloudHPC today is releasing the new snappyHexMesh calculator. This is a tool which helps users into choosing the main geometrical parameters of a CFD mesh built using snappyHexMesh, the opensource meshing software included in OpenFOAM. Thanks to this tool, using few parameters, the user can obtain geometrial info about his Read more
Many users wonder how which procedure follows our snappyHexMesh script. The reply to this question is rather simple and this post aims at giving you the most important info. basic steps to generate mesh with snappyHexMesh Obviously to use snappyHexMesh there are three steps to follow and complete: blockMesh – Read more