How to Mesh Dirty CAD Using Fluent Meshing | Ansys Virtual Academy

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In this session, we learn how to use Ansys Fluent’s wrapper-based meshing workflow, aka fault-tolerant meshing (FTM), to create high-quality meshes around faulty CAD with issues such as holes, missing and intersecting faces. We will follow the easy and intuitive steps in the task-based workflow to greatly reduce meshing efforts for complex geometries. Some of the important steps that are covered include:
-Introduction to the mesh wrapping technology and FTM workflow
-Demo - generation of fault-tolerant mesh for internal flow
-Demo - generation of fault-tolerant mesh for external flow
This session is highly recommended for CFD analysts who are looking to reduce their simulation pre-processing time and simplify their CFD workflow by taking advantage of Fluent’s single window workflow from geometry import to post-processing.
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[@elochana]

Thanks.. Helped me to mesh my project which had an error of overlapping faces sharing an edge.

[@KETIVTechnologies]

You're welcome!

[@pramodn9077]

Excellent AVA, Ms. Sarkar. Would it be possible to share the geometry used for the internal flow demo?

[@dattasai7]

Thank you for the video. I have one query. Does this method work for an external flow where the geometry has multiple objects? for example, a motorcycle, where there are more components assembled together and I want to analyse the flow through it.
Thank you

[@ziaurrahman-xr6mm]

Could you provide the video for constructing this geometry in spaceclaim please?

[@vivejk4443]

I have fluent 2020 R2 and my supported file format is fmdb not fmd for cad file. if i save as fmd and open it in fluent mesher, it throws me an error saying "file format not yet supported". the fluent meshing tree is all jumbled up for me. im sorry but this method just didnt do it for my case. it deleted all the interfaces set up in my cad for a turbo analysis. However, it did produce a good quality mesh

[@inkwizytor84]

What if wanna a finer mesh, finer than the size of leakage,

[@nifzahunt]

I have create mesh for a channel. When using hexamesh, the boundary layers are shown, but when using polymesh, the boundary layers are not shown. How to solve this problem?

[@abubakarkhan-ez4em]

Can i get this CAD geometry?

[@abhishekkumarshingala8346]

what if I have extracted volume already, in that case I will have no void region right.

[@abhishekkumarshingala8346]

in that case one doe not need to identify region.

[@joelgeorge9553]

How do I find the leakage size of my geometry from spaceclaim.

[@TheyCallMeApplePie]

you can find the leakage first and then measure the distance. leakeage usually can be seen in the octree

[@vivejk4443]

i think one can select the whole geometry and set a leakage size. is that viable?

[@Tyleroke1]

great video dont get me wrong but ansys has been a nightmare for me, every little problem leads me to another video and another with a completely different method of meshing or solving and nothing goes according to the video there is always problem after problem, for this one i dont have a fmd option and it just gives me errors, all this and im not even sure if i need to be doing watertight or fault tolerant method but it wasnt working the other ways so here i am.

[@KETIVTechnologies]

We're sorry to hear that! We understand these softwares can be challenging to navigate, but you need any more help, feel free to reach out to our support line or send us an email at [e-mail]! We could talk more about your issue or even consider this for a future session!