topic Structured Mesh in CFD Forum

Structured Mesh

Anonymous — Mon, 08 May 2017 05:10:40 GMT

Is there anyway to create structured mesh like in ANSYS workbench? I mean not only uniform mesh but structured mesh also. I am analyzing a foil. I want to create structured mesh near foil.

I guess like this picture.Thank you for your attention.

Re: Structured Mesh

Xiaojin.Zhang — Mon, 08 May 2017 06:11:25 GMT

Hello,

It is not possible to create the same mesh as ANSYS by CFD. But you can create structured (Quads) mesh near the airfoil by enabling wall layer.

Thanks!

Re: Structured Mesh

Anonymous — Thu, 11 May 2017 03:49:12 GMT

Hi @Xiaojin.Zhang,

Thank you for your reply. Okay, noted! I will try to create quads mesh by enabling wall layer as your advice. By the way how to know the mesh quality? We don't know our mesh is proper or fine enough for our simulations. Is there possible to try "grid independence" to know our mesh quality? Hope you can understand what I mean.

Thank you.

Re: Structured Mesh

Jon.Wilde — Thu, 11 May 2017 07:11:52 GMT

You can either do a manual mesh sensitivity study or use the automatic mesh adaption (in 3D).

You can also enable Y+ within Solve -> Results quantities, another useful measure.

We might not necessarily need the mesh that you are expecting us to, try it and see 🙂

Re: Structured Mesh

Anonymous — Fri, 12 May 2017 01:24:11 GMT

Hi @Jon.Wilde, thank you for your reply. I got it. But how to measure y+ within solve -> result quantities? by enable y+ before we click "solve" button or we can calculate it from wall calculator after simulations successfully convergence?

Thank you.

Re: Structured Mesh

Xiaojin.Zhang — Fri, 12 May 2017 04:14:16 GMT

Hello,

Please check the box as the attached picture and you can check Y+ the same way as the other reulsts.

After it is checked, you need to run for a further 0 interations to get this result.

Thank you!

Re: Structured Mesh

Anonymous — Fri, 12 May 2017 04:37:20 GMT

Hi @Xiaojin.Zhang,

Yes, I was enable y+ and run some iterations until convergence. I just want to know exactly how to measure y+?

Re: Structured Mesh

Jon.Wilde — Fri, 12 May 2017 10:59:57 GMT

You can plot it with an ISO surface, this will help you to visualise where it is suitable and not 🙂