[overture] Re: multiblock grids

Hi Bill,

Check the attached mapping, do you think it's possible to have it in a block 
structured way with matching interfaces?

Regarding
to the c-grids from plot3d files, I remember a time ago you mentioned
that the c-grids generated with ogen don't work  with moving grids, is
the same for the c-grids from plot3d files??


Regards,

Joel





create mappings
  spline
    enter spline points
    3
    0 0
    0.2 0.5
    1 1
    mappingName
    s1
    exit
  spline
    enter spline points
    3
    1 0
    1.2 0.5
    2 1
    mappingName
    s2
    exit
  tfi
    choose left curve   (r_1=0)
      s1
    choose right curve  (r_1=1)
      s2
    lines
    10 50
    boundary conditions
    1 1 0 1
    mappingName
    tfi1
    exit
  line (2D)
    mappingName
    l1
    exit
  line (2D)
    set end points
    0 1 -1 -1
    mappingName
    l2
    exit
  tfi
    choose bottom curve (r_2=0)
      l2
    choose top curve    (r_2=1)
      l1
    boundary conditions
    1 1 1 0
    lines
    10 10
    mappingName
    tfi2
    exit

  exit this menu
generate an overlapping grid
  tfi1
  tfi2
  done choosing mappings







----- Original Message ----
From: Bill Henshaw <henshaw@xxxxxxxx>
To: overture@xxxxxxxxxxxxx
Sent: Wednesday, July 9, 2008 5:36:29 AM
Subject: [overture] Re: multiblock grids

Hi Joel,

   The attached ogen cmd file shows one way to make a block structured grid
using the 'maximize overlap' option.

   You can use C-grids from plot3d files. See the ogen documentation on
'mixed boundaries' for a discussion of C-grids and how to specify the
C-grid branch cut. You may have to manually indicate which points are
on the branch cut.

Regards,
   Bill.

Joel Guerrero wrote:
> Hi,
> I wonder how can I generate a non-overlapping multiblock grid?.  Thas is, I 
> want to have perfectly matching blocks and I want to use linear interpolaton 
> in the interfaces.  I tried to proceed as in a tutorial given in the 
> documentation, but for the geometry I'm using it doesn't work very well 
> (airfoils).  
> Also, I'm wondering if it's possible to use c-grids exported in plot3d 
> format.  I tried to use one, but ogen sees the branch cut as a physical 
> boundary.
> Cheers,
> Joel
>

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