[Gmsh] Generate a CFD mesh

[li.hao.48z at st.kyoto-u.ac.jp]

Dear Dr. Saha,

Thanks very much for your kind guidance!
Let us take a try based on these tutorials.

Sincerely yours,
Hao

________________________________
From: SAHA, SUDIPTA <sahas at email.sc.edu>
Sent: 10 August 2020 5:41
To: 李昊 <lihao71862b at gmail.com>; gmsh at onelab.info <gmsh at onelab.info>
Cc: li.hao.48z at st.kyoto-u.ac.jp <li.hao.48z at st.kyoto-u.ac.jp>
Subject: Re: [Gmsh] Generate a CFD mesh

Yes. It is possible. You have to mesh in the gmsh script. I would say have denser Transfinite mesh along the formation of boundary layer.
This is a nice visualization on how transfinite mesh can be formed and distributed from denser to coarser and vice versa by altering the Progression parameter in the script.
https://www.youtube.com/watch?v=O1FyiBBuN98
https://www.youtube.com/watch?v=ewp3VGyymK4

And I emphasize on the practicing the t6.geo tutorial described in the gmsh manual.



__

Best Regards
Sudipta Saha, MS, EIT
Spent Fuel Modeling Intern, Idaho National Laboratory

PhD Candidate in Mechanical Engineering
Reacting System and Advanced Energy Research Lab
Graduate Council Representative, Graduate Student Association
LinkedIn<https://www.linkedin.com/in/sudipta-saha-usc/> | ResearchGate<https://www.researchgate.net/profile/Sudipta_Saha13> | GoogleScholar<https://scholar.google.com/citations?user=xDVKlBcAAAAJ&hl=en> | Website<https://sudiptasaha.weebly.com/>
[cid:daefd920-4e61-45bd-8c0b-e276bd293205]



________________________________
From: gmsh <gmsh-bounces at ace20.montefiore.ulg.ac.be> on behalf of 李昊 <lihao71862b at gmail.com>
Sent: Sunday, August 9, 2020 7:31 AM
To: gmsh at onelab.info <gmsh at onelab.info>
Cc: li.hao.48z at st.kyoto-u.ac.jp <li.hao.48z at st.kyoto-u.ac.jp>
Subject: [Gmsh] Generate a CFD mesh

Dear Gmsh developers,

We would like to generate a high-quality mesh for the Fluid-structure-interaction simulation.
The Geometry is read from a CAD file (step). The inner block in the red circle is the solid domain and the outer block is the fluid domain.
We hope to refine the mesh only on the fluid-solid interface while remaining the coarse meshes in the rest of the domains. Is it possible to do that?
The geo file is attached.
[image.png]

Thanks very much in advance!

Sincerely yours,
Hao
--
李昊 LI HAO
Manufacturing Systems Engineering Laboratory (Nishiwaki Lab)
Department of Mechanical Engineering and Science
Graduate School Of Engineering
Kyoto University
Ph.D Student
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