Mesh Generation For CFD Using Open– Source Tools

What you'll learn
Understand and distinguish between structured, semi-structured, and unstructured meshing approaches used in CFD
Generate CFD-ready meshes using open-source tools including blockMesh, Classyblocks, snappyHexMesh, cfMesh, and Gmsh
Import and prepare 2D geometries for meshing within an OpenFOAM-based workflow
Apply local and surface refinement strategies to accurately capture flow features
Create and control boundary layer meshes suitable for viscous flow simulations
Evaluate mesh quality using standard CFD mesh metrics (orthogonality, skewness, aspect ratio, non-orthogonality)
Select appropriate meshing strategies based on problem physics, solver requirements, and computational cost
Identify and fix common meshing issues that lead to solver instability or poor convergence
Build reproducible meshing pipelines using case files and best practices for OpenFOAM simulations
Requirements
Ability to run OpenFOAM simulations independently on a local Linux system (or WSL/Docker)
Basic understanding of computational fluid dynamics (CFD) concepts such as domains, boundary conditions, and solvers
Familiarity with the Linux command line (navigating directories, editing files, running commands)
Basic knowledge of mesh concepts (cells, faces, boundaries) is helpful but not mandatory
Prior exposure to OpenFOAM case structure (system, constant, 0 directories) is recommended
Description
High-quality meshes are the foundation of accurate, stable, and efficient CFD simulations. This course provides a practical, hands-on introduction to CFD mesh generation using widely adopted open-source tools within the OpenFOAM ecosystem. Instead of focusing on theory alone, the course emphasizes real meshing workflows, common pitfalls, and best practices that directly impact solver performance and numerical stability.You will learn how to generate both structured and unstructured meshes using tools such as blockMesh, Classyblocks, snappyHexMesh, cfMesh, and Gmsh. Through carefully designed 2D examples, the course demonstrates how different meshing strategies influence solution accuracy, convergence behavior, and computational cost. These simplified cases allow you to focus on meshing fundamentals while still reflecting real CFD challenges.The course combines video lectures, additional reading material, and ready-to-run case files, enabling you to follow along and experiment independently. You will explore techniques for geometry preparation, surface refinement, boundary layer generation, and mesh quality assessment using standard CFD metrics. Each topic is reinforced with practical examples that highlight how poor meshing choices can lead to instability and how to fix them effectively.By the end of the course, you will be able to confidently select and apply the right meshing tool and strategy for a given CFD problem, build reproducible preprocessing workflows, and generate meshes that lead to reliable and efficient OpenFOAM simulations. This course is ideal for students, researchers, and professionals who want to strengthen their meshing skills using fully open-source CFD tools.
Engineering students (undergraduate or postgraduate) working on CFD assignments, projects, or thesis work,Researchers and PhD scholars who want to build reliable, high-quality meshes for CFD simulations using open-source tools,CFD engineers and professionals seeking to strengthen their meshing and preprocessing skills for industrial simulations,OpenFOAM users who want to improve solver stability, accuracy, and efficiency through better mesh design,Learners interested in open-source CFD workflows and alternatives to commercial meshing software
Homepage

https://www.udemy.com/course/mesh-generation-cfd/

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