Learning Forum

[rhysefan98]

I’m attempting to mesh a airfoil naca 63 212 using Ansys fluid fluent for a uni assignment. I’ve set my geometry and just completed my mesh. I think the mesh I’ve done is ok as a start but one side of the part has disappeared. Can anyone help with this? It’s the 2021 r2 software, this was attempted in uni so I think it’s the full package software. I’ve tried meshing in two different ways and below is the best.

thanks,

‘Rhys.

[Rob]

I'd be remeshing the above: the growth rate and aspect ratio are too high. Check in geometry that you have faces, it's possible to create an edge loop (or sketch) but not fill it in.

[rhysefan98]

Hi rob by reducing these values will it bring the mesh close to airfoil but increase the gaps big and bigger until the edge.

[Rob]

You don't have to map the faces.

[DrAmine]

what is disappearing? The right mesh corner? How is that possible? Which pre-processor are u using?

[rhysefan98]

Yes top right missing and no idea. IÔÇÖve reopened the file and itÔÇÖs meshed fine.

[rhysefan98]

Hi Rob do you offer any tutoring for Ansys?

[Rob]

Personally, no. But Ansys does, I may then deliver it: one of the roles most of the staff on here cover is training. We (Ansys) are required to work through the University to attach the training to a licence and to comply with export rules. There is a charge for this, and please use the "contact us" button on ansys.com to take it further. A more cost effective option may be to get a subscription to the Ansys Learning Hub, https://www.ansys.com/services/ansys-learning-hub which contains all of the Ansys courses, many of which can be run on demand.
For your model I'd focus on reading/viewing some of the YouTube videos on the NACA air/aero foils.

[DrAmine]

Good to see working fine now.

[rhysefan98]

Yes good shout with YouTube, IÔÇÖve watched a few just I seem to get stuck on this mesh again. IÔÇÖve saved my files locally but the files wonÔÇÖt open so IÔÇÖve had to start again. IÔÇÖve noticed now thereÔÇÖs a gap on airfoil at the Center point. Any ideas? Should I delete the last but one coordinate and make sure it goes back to 0? DoesnÔÇÖt seem to completely follow my geometry.

[Rob]

It could be a tolerance issue, you need to be very careful to make sure the points all join up.