FoamFile
{
version 2.0;
format ascii;
class dictionary;
object blockMeshDict;
}
//The unit of the vertices is 1.0 meter
convertToMeters 1.0;
//A cube with the following vertex indices:
//
// 7-----6
// /| /|
// 3-----2 |
// | | | |
// | 4---|-5
// |/ |/
// 0-----1
//
//Each vertex is of the form (x y z)
//
//The local coordinate system is defined by the order in which the vertices are presented in the block definition according to:
//- the axis origin is the first entry in the block definition, vertex 0 in our example;
//- the x direction is described by moving from vertex 0 to vertex 1;
//- the y direction is described by moving from vertex 1 to vertex 2;
//- vertices 0, 1, 2, 3 define the plane z
//- vertex 4 is found by moving from vertex 0 in the z direction;
//- vertices 5,6 and 7 are similarly found by moving in the z direction from vertices 1,2 and 3
vertices
(
(0 0 0)
(1 0 0)
(1 1 0)
(0 1 0)
(0 0 1)
(1 0 1)
(1 1 1)
(0 1 1)
);
//Ordered list of vertex labels and mesh size
blocks
(
hex //The shape is always hex, as blocks are always hexahedra
(0 1 2 3 4 5 6 7) // vertex numbers
(10 10 10) // numbers of cells in each direction
simpleGrading (1 1 1) // cell expansion ratios
);
//Used to describe arc or spline edges
//Keyword selection | Description | Additional entries
//- arc | Circular arc | Single interpolation point
//- simpleSpline | Spline curve | List of interpolation points
//- polyLine | Set of lines | List of interpolation points
//- polySpline | Set of splines | List of interpolation points
//- line | Straight line |
edges
(
//No need to add edge descriptions here, as 'line' is used by default
//Example for using the arc type:
// arc 1 5 (0.9 0.5 0.0)
);
//List of patches
patches
(
);
boundary
(
//There are multiple boundary types:
//- movingWall:
//- fixedWalls:
//- frontAndBack: for two dimensional meshes
//- inlet
//- outlet
//- walls
fixedWalls
{
//There are multiple types:
//- wall:
//- patch
//- cyclic
type wall;
//The vertices that make up the six faces of the cube
//
//Each block face is defined by a list of 4 vertex numbers.
//The order in which the vertices are given must be such that,
//looking from inside the block and starting with any vertex,
//the face must be traversed in a clockwise direction to define the other vertices.
faces
(
(0 3 2 1)
(0 4 7 3)
(1 5 4 0)
(2 6 5 1)
(3 7 6 2)
(4 5 6 7)
);
}
);
//List of patches to be merged
mergePatchPairs
(
);
|
