Quick and dirty introduction to overset meshes in Ansys Fluent 2023
Channel: Wolf Dynamics World
Date: 2024-01-13

😎 In this video tutorial, we briefly introduce overset meshes, quickly explore how to set overset meshes in Ansys Fluent and run a simple static case using overset meshes in Ansys Fluent 2023.

🤔Overset meshes (OM) are also known as overlapping grids, overset composite grids, composite overlapping meshes, chimera meshes, patches grids, composite grids, relaxed multi-block meshes.

Case files: 
https://bit.ly/3tRNRVK


🫡 Old playlist. This was back in 2019 - Pre-pandemic times fellas! 
https://www.youtube.com/playlist?list=PLoI86R1JVvv_rDlODjff5LUWD4WX9G9vc

🥳 Stay tuned as we are working on a new playlist using the latest version of OpenFOAM ESI and Ansys fluent.


Chapters:
00:00 Introduction
01:20 What are overset meshes?
03:30 Let's launch Ansys Fluent - Remember to launch it as an administrator
05:50 Let's load the meshes - Merging meshes
07:38 Assign overset boundary condition
08:40 Overset interface
10:24 Let's initialize the solution to compute the cell types
11:35 Overset options hidden in the TUI (text user interface)
12:22 Same chimera hole as in OpenFOAM
13:45 Let's set the rest of the case
16:30 Let's talk about grid priorities
17:53 Let's continue with the case setup - Numerical method and monitors
19:03 Patch initialization - Equivalent to setFields in OpenFOAM
21:09 Let's read a case ready to run
22:45 Almost ready to run - Time advancement options
24:20 And off we go - Running the simulation - Some comments about the cores/hybrid architecture
30:08 Let's take a look at the final results
34:05 Main takeaways - Final remarks


Useful links:

Ansys Student - Free Software Download
https://www.ansys.com/academic/students/ansys-student

OpenFOAM setup
https://youtu.be/jD5YkqCJajs

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