Operate on zones. Commands listed here:

Please see the Formulation of a 3D Explicit Finite Volume Model section for a detailed description of FLAC zones and their implementation and structure.

Zone elements are connected through gridpoints.

Zones can interact across surfaces (3D) or edges (2D) with the interface logic using interface nodes and elements.

Zone faces can be used to track and name zone surfaces (3D) or edges (2D). It is important to note that there is no actual separate zone face data structure. Zone faces are simply associations made with the boundaries of individual zones. As such zone faces do not have a unique id number, but are instead identified by either a zone ID number and side number pair, or by a list of gridpoint ID numbers.

zone commands

zone apply
zone apply-remove
zone attach
zone cmodel
zone consolidation
zone copy
zone create
zone create2d
zone creep
zone delete
zone densify
zone dynamic
zone export
zone fluid
zone generate
zone geometry-test
zone geometry-tolerance
zone geometry-update
zone group
zone hide
zone history
zone import
zone initialize
zone initialize-stresses
zone list
zone mechanical
zone nodal-mixed-discretization
zone property
zone property-distribution
zone ratio
zone reflect
zone relax
zone results
zone select
zone separate
zone split
zone thermal
zone trace
zone validate
zone vtk
zone water