[Gmsh] Airfoil meshing Naca 0012

[Eric Nutsch]

Emanuele,


Well first you need to make 2 line loops, one for the airfoil and one
for the farfield(in userguide)
Then make a plane surface using the 2 loops.(userguide)
You will then be able to mesh
To control the mesh size use the characteristic length(userguide)

If you want to then want to use a boundary layer you will be stuck the
same place as I. It is easy enough to create a boundary layer with the
extrude function, but I have yet to figure out how to attach it to a
farfield mesh.


Eric Nutsch


On Sat, Feb 20, 2010 at 7:29 AM, Emanuele T. <nuovodna at gmail.com> wrote:
> I attach my current .geo file
>
> 2010/2/20 Emanuele T. <nuovodna at gmail.com>
>>
>> Thanks for the tip. Now i have another problem. I prepared a .geo file
>> with an airfoil in a circular box. I'd like to obtain a mesh like in
>> attached picture. How can i realize this?
>>
>> 2010/2/19 Eric Nutsch <ericnutsch at gmail.com>
>>>
>>> Emanuele,
>>>
>>>
>>> If by points you mean cells (for more resolution), you can use the
>>> gmsh "characteristic length" variable (lots of info in the user
>>> guide).
>>>
>>> If you actually want more points(not sure why) you would have to write
>>> an interpolation script outside of gmsh (python for instance)
>>>
>>>
>>> Eric Nutsch
>>>
>>>
>>>
>>> On Fri, Feb 19, 2010 at 12:15 PM, Emanuele T. <nuovodna at gmail.com> wrote:
>>> > Hi, i wrote a mesh using naca 0012 points taken
>>> >
>>> > here http://www.soton.ac.uk/~jps7/Aircraft%20Design%20Resources/Sydney%20aerodynamics%20for%20students/panel2d/naca0012.dat
>>> > I want to intensify the density of points near the leading edge and the
>>> > trailing edge. How can i obtain this??
>>> > Thanks
>>> > _______________________________________________
>>> > gmsh mailing list
>>> > gmsh at geuz.org
>>> > http://www.geuz.org/mailman/listinfo/gmsh
>>> >
>>> >
>>
>
>
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