ANSYS Fluent Tutorial: Flow over a Cylinder | Part 1: Geometry and Mesh Generation

📊Welcome to CFD College📊

Welcome to the first video of the Mastering ANSYS Fluent: From Beginner to Advanced Series! In this tutorial, I guide you through a complete simulation of airflow over a cylinder, one of the most fundamental cases in computational fluid dynamics (CFD) to study wake formation and flow regimes. This comprehensive tutorial is perfect for beginners looking to understand the basics of geometry creation, mesh generation, and key flow phenomena.

🔍 What You’ll Learn in This Tutorial:

1-2D Domain Creation in DesignModeler: Step-by-step instructions on how to create the 2D computational domain for simulating airflow around a cylinder.
2-Geometry Splitting for Structured Mesh: Learn how to split the domain into sub-domains to generate a fully structured mesh, ensuring better control and accuracy in your simulation.
3-Flow Regimes Around a Cylinder: I explain the different flow regimes (laminar, transitional, and turbulent) based on the Reynolds number and how they affect the flow behavior, including vortex shedding and boundary layer separation.
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🔧 Why This Video Is Important:
Understanding the flow over a cylinder is a foundational CFD problem used in various fields like aerospace, mechanical engineering, and fluid dynamics research. By learning how to create the computational domain and generate a high-quality structured mesh, you build a solid base for tackling more complex simulation problems.

💬 Who Should Watch This Video:

Beginners learning ANSYS Fluent and CFD simulation workflows.
-Students and engineers studying flow over bluff bodies and Reynolds number effects.
-Researchers analyzing fundamental flow phenomena such as vortex shedding and wake formation.

💡 Pro Tip: Proper domain creation and structured meshing ensure high-quality results. Pay attention to how the domain is split into sub-domains for effective meshing, as this will greatly improve the accuracy of your CFD simulations.

Useful Links:

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-Connect with Me on LinkedIn: https://www.linkedin.com/in/ashkan-ghafari/

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00:00 Introduction
02:48 Flow Regimes
05:31 Creating the CFD Domain
16:55 Generating the Grid