Check Y plus in ANSYS Fluent | Plot Y-plus in ANSYS Fluent | ANSYS Fluent Tutorial

📊Welcome to CFD College📊

In this tutorial, I explain how to check the Y-Plus value in simulations done using ANSYS Fluent. Monitoring Y-Plus is a critical step in turbulent flow simulations, as it determines whether the boundary layer is being resolved or modeled correctly, ultimately affecting the accuracy of your CFD results.

🔍 What You’ll Learn:

1-Why Y-Plus Matters: Understand the importance of Y-Plus in turbulent flows and how it impacts wall treatment, turbulence models, and simulation accuracy.
2-How to Check Y-Plus in 2D Flows: Learn how to use xy-plot to monitor and analyze Y-Plus values in two-dimensional flow geometries.
3-How to Check Y-Plus in 3D Flows: Discover how to inspect and interpret contour plots in three-dimensional flows to evaluate Y-Plus distribution on wall boundaries.

🔧 Why This Video Is Important:
Accurately maintaining Y-Plus within the appropriate range ensures proper boundary layer resolution and successful application of turbulence models. For example, using wall-resolved models (Y-Plus below 1) or wall functions (Y-Plus in the range of 30–300) requires different meshing strategies. This video shows you how to evaluate Y-Plus values effectively to optimize your mesh and improve simulation reliability.

💬 Who Should Watch This Video:

-Students learning CFD and the role of Y-Plus in simulations.
-Engineers and researchers performing turbulent flow analyses in ANSYS Fluent.
-Anyone interested in ensuring boundary layer accuracy in 2D and 3D flow simulations.

💡 Pro Tip: Always validate your Y-Plus values based on the turbulence model and boundary conditions used. A proper mesh and boundary layer resolution can significantly improve simulation results.

🔗Useful Links:

-Playlist: https://www.youtube.com/playlist?list=PL1-FlMhk3mNj2qtmasZwOakF8YpH-vXaq

-Subscribe: https://www.youtube.com/@CFDCollege?sub_confirmation=1

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

Don’t forget to like, comment, and subscribe for more insights and tutorials on computational fluid dynamics and ANSYS Fluent!
#ansysfluent #ansys #ansystutorial #ansysfluenttutorial

00:00 Introduction
01:42 Check y-plus in 2D simulation
06:30 Check y-plus in 2D simulation