meshing in Salome

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11 years 7 months ago #3186 by Claus
Replied by Claus on topic Re:meshing in Salome
Nicky wrote:

i've been playing around with the mesh and now it looks much better, but i have a question:

- how can I do so that the mesh is more accurate at some points, for example in front of the aerofoil?


AFAIK that isn't possible (unfortunately) yet, but if you have round shapes and use Netgen with a sufficiently low length on the 1D algorithm, you will get a fine mesh around the airfoil and course around the outer edges

Code_Aster release : STA11.4 on OpenSUSE 12.3 64 bits - EDF/Intel version

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11 years 7 months ago #3190 by Nicky
Replied by Nicky on topic Re:meshing in Salome
:(

well, for what I'm doing that isn't as important, but it would have been better.

Thanks!

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11 years 7 months ago #3194 by Joël Cugnoni
Replied by Joël Cugnoni on topic Re:meshing in Salome
Hi,

you should be able to refine your mesh locally if you use "submeshes":
submeshes let you define actually local meshing rules while the global meshing options apply everywhere else (=default meshing rules)
1) create a "coarse" global mesh with
1D hypothesis = average length and 1D algo = Wire discretisation
2D hypothesis = Triangle (or Netgen 2D)
=> compute the mesh
2) select your Mesh object and in the menu, run "Create Submesh"
select a region of your geometric object (you can partition your curves or "explode" your geometry object into edges). The simplest procedure is to "select from a mesh element".
- pick an edge to refine
- choose 1D algorithm = Wire descretization
- create a new 1D Avergage length hypothesis with a smaller size
validate and compute your mesh

You can have a look at the Geometry ad Meshing tutorial on the Wiki: it is outdated but the principle is still the same.

Joël Cugnoni - a.k.a admin
www.caelinux.com

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11 years 7 months ago #3197 by Nicky
Replied by Nicky on topic Re:meshing in Salome
Thanks!! that has been very helpful indeed! :)

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7 years 8 months ago #6967 by Luis Fernando Garcia
Replied by Luis Fernando Garcia on topic Re: meshing in Salome
Hi!

I'm new on this software and I'm going to work on an airfoil simulation, I'm wondering if could you help me telling me how to import the coordinates of an airfoil in salome-meca? It'll be great if you or anyone could help me on that.

Greetings from Colombia

Luis Fernando

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