• Coupling condition between a pair of patches
  • Faces on each coupled patch must have the same topology, i.e. they must have collocated points such a one-to-one mapping exists between the faces on each side.
  • The coupling is treated implicitly using the cell values adjacent to each pair of cyclic patches
  • The face values are determined using linear interpolation between the cell values


The condition requires entries in both the boundary and field files. Mesh boundary file:

    type            cyclic;
    neighbourPatch  <coupled patch name>;
    transform       <transform type>;

Field file:

    type            cyclic;


Cyclic boundary types

Further information

Source code:

Example usage:

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