Block Format Keyword Describes the elementary boundary conditions.


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surf_ID   monvol_ID Fscale          


Field Contents SI Unit Example
ebcs_ID Elementary boundary condition identifier.

(Integer, maximum 10 digits)

surf_ID Surface identifier where flux with monitored volumes are available.


monvol_ID Monitored volume identifier with which fluxes are accounted.


Fscale Scale factor communication fluxed are scale by this value.

Default = 1.0 (Real)



  1. The communication surface must lie on the outer surface of a fluid (ALE or Euler) domain.
  2. There is no need for the geometry of the fluid domain to be consistent with the monitored volume geometry.
  3. This EBCS formulation is not compatible with SPMD parallel version.