[babakflame]

Greetings all

I am trying to make a 3D mesh with blockMesh utility. I have found an example of cylinder mesh in this subforum. I have a question about patches.

The example mesh is as follows:

   vertices
   (
    ( 1.25 0.0  1.25) // Vertex fiveoclocksqb = 0 
    (-1.25 0.0  1.25) // Vertex sevenoclocksqb = 1 
    (-1.25 0.0 -1.25) // Vertex elevenoclocksqb = 2 
    ( 1.25 0.0 -1.25) // Vertex oneoclocksqb = 3 
   
    ( 1.76776695455285 0.0  1.76776695137989) // Vertex fiveoclockcb = 4 
    (-1.76776695455285 0.0  1.76776695137989) // Vertex sevenoclockcb = 5 
    (-1.76776695455285 0.0 -1.76776695137989) // Vertex elevenoclockcb = 6 
    ( 1.76776695455285 0.0 -1.76776695137989) // Vertex oneoclockcb = 7 

    ( 1.25 100  1.25) // Vertex fiveoclocksqt = 8 
    (-1.25 100  1.25) // Vertex sevenoclocksqt = 9 
    (-1.25 100 -1.25) // Vertex elevenoclocksqt = 10 
    ( 1.25 100 -1.25) // Vertex oneoclocksqt = 11 
   
    ( 1.76776695455285 100  1.76776695137989) // Vertex fiveoclockct = 12 
    (-1.76776695455285 100  1.76776695137989) // Vertex sevenoclockct = 13 
    (-1.76776695455285 100 -1.76776695137989) // Vertex elevenoclockct = 14 
    ( 1.76776695455285 100 -1.76776695137989) // Vertex oneoclockct = 15 
   );                

   blocks
   (
    //square block
    hex (1 0 3 2 9 8 11 10) (3 3 10) simpleGrading (1 1 1)

    //slice1
    hex (5 4 0 1 13 12 8 9) (3 3 10) simpleGrading (1 1 1)

    //slice2
    hex (1 2 6 5 9 10 14 13)  (3 3 10)simpleGrading (1 1 1)

    );


   //create the quarter circles
   edges
   (
    arc 4 5 (0.0 0.0 2.5)
    arc 5 6 (-2.5 0.0 0.0)
    arc 6 7 (0.0 0.0 -2.5)
    arc 7 4 (2.5 0.0 0.0)

   );

   patches
   (
    patch outlet
    (
     (2 4(0 3 2 1))
     (2 4(0 4 7 3))
     (2 4(4 0 1 5))
     (2 4(1 2 6 5))
     (2 4(3 7 6 2))
    )

My question is what are these 2 and 4 before (0 3 2 1) in the outlet patch?

(2 4(0 3 2 1))

these 2 and 4 have been repeated for all other patches?


Regards
Bobi