[Nek5000-users] pipe prenek

[nek5000-users at lists.mcs.anl.gov]

Hi Nek,

Is there anyone knows how to calculate the curvature in .rea file.
Recently, I want to generate a pipe mesh but it doesn't seem like a pipe in
which I guess there is something wrong in curvature part in .rea file. I
have attached the mesh part below.

  **MESH DATA** 1st line is X of corner 1,2,3,4. 2nd line is Y.
        12         2        12 NEL,NDIM,NELV
      ELEMENT          1 [    1A]    GROUP     0
   0.000000      0.350000       0.250000       0.000000
   0.000000      0.000000       0.250000       0.350000
      ELEMENT          2 [    1B]    GROUP     0
   0.500000      0.353554       0.250000       0.350000
   0.000000      0.353554       0.250000       0.000000
      ELEMENT          3 [    1C]    GROUP     0
   0.000000      0.000000       0.250000       0.353554
   0.500000      0.350000       0.250000       0.353554
      ELEMENT          4 [    1A]    GROUP     0
   0.000000      0.000000       0.250000       0.350000
   0.000000     -0.350000      -0.250000       0.000000
      ELEMENT          5 [    1B]    GROUP     0
   0.000000      0.353554       0.250000       0.000000
  -0.500000     -0.353554      -0.250000      -0.350000
      ELEMENT          6 [    1C]    GROUP     0
   0.500000      0.350000       0.250000       0.353554
   0.000000      0.000000      -0.250000      -0.353554
      ELEMENT          7 [    1A]    GROUP     0
   0.000000     -0.350000      -0.250000       0.000000
   0.000000      0.000000      -0.250000      -0.350000
      ELEMENT          8 [    1B]    GROUP     0
  -0.500000     -0.353554      -0.250000      -0.350000
   0.000000     -0.353554      -0.250000       0.000000
      ELEMENT          9 [    1C]    GROUP     0
   0.000000      0.000000      -0.250000      -0.353554
  -0.500000     -0.350000      -0.250000      -0.353554
      ELEMENT         10 [    1A]    GROUP     0
   0.000000      0.000000      -0.250000      -0.350000
   0.000000      0.350000       0.250000       0.000000
      ELEMENT         11 [    1B]    GROUP     0
   0.000000     -0.353554      -0.250000       0.000000
   0.500000      0.353554       0.250000       0.350000
      ELEMENT         12 [    1C]    GROUP     0
  -0.500000     -0.350000      -0.250000      -0.353554
   0.000000      0.000000       0.250000       0.353554
  ***** CURVED SIDE DATA *****
         8 Curved sides follow IEDGE,IEL,CURVE(I),I=1,5, CCURVE
  1  2  0.50000   0.00000       0.00000       0.00000       0.00000     C
  4  3  0.50000   0.00000       0.00000       0.00000       0.00000     C
  1  5  0.50000   0.00000       0.00000       0.00000       0.00000     C
  4  6  0.50000   0.00000       0.00000       0.00000       0.00000     C
  1  8  0.50000   0.00000       0.00000       0.00000       0.00000     C
  4  9  0.50000   0.00000       0.00000       0.00000       0.00000     C
  1 11  0.50000   0.00000       0.00000       0.00000       0.00000     C
  4 12  0.50000   0.00000       0.00000       0.00000       0.00000     C


Kind regards,

ZJ
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