Commands

Operate on zones.

Please see the Formulation of a 3D Explicit Finite Difference Model section for a detailed description of FLAC3D zones and their implementation and structure.

Zone elements are connected through gridpoints.

Zones can interact across surfaces with the interface logic using interface nodes and elements.

Zone faces can be used to track and name zone surfaces. 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 Create or modify zone conditions.
zone apply-remove Remove a zone condition.
zone attach Create attached gridpoints.
zone cmodel Assign, load, or get information on a zone constitutive model.
zone copy Copy zones.
zone create The zone.
zone creep This command sets parameters for a time-dependent creep material analysis...
zone delete Delete zones.
zone densify This command finds all zones in the range and subdivides...
zone dynamic This command sets parameters for a dynamic model (only available...
zone export Exports a grid to a file.
zone fluid This command sets parameters for a groundwater fluid flow analysis.
zone generate This set of commands generates zones based on an algorithm,...
zone geometry-test Evaluate the integrity of model zones.
zone geometry-tolerance This command defines the tolerance before an illegal geometry error...
zone geometry-update Updates associated with geometric or property changes are performed at...
zone group Add group name s to the zones in the range.
zone hide This commands hides or un-hides all zones in the range.
zone history Adds a history of a zone value.
zone import Import a grid from a file.
zone initialize Initialize a variable on all zones in the range.
zone initialize-stresses Initialize zone stresses based on the density of the zones...
zone list List zone data.
zone mechanical Sets parameters for a static mechanical analysis, that are specific...
zone nodal-mixed-discretization Activate or deactivate the nodal mixed discretization (nmd) feature.
zone property Make a constitutive model(s) property assignment.
zone property-distribution Modify a zone constitutive model property.
zone ratio The ratio limit for mechanical, thermal and fluid-flow calculations using...
zone reflect All zones within the given range are reflected across the...
zone relax Creates and modifies a special apply condition on the zones...
zone results Controls if and what values are saved from zones in...
zone select This commands selects or de-selects all zones in the range.
zone separate separates internal faces specified by the range .
zone split Splits zones in the range into multiple hexahedral zones.
zone thermal Set parameters for a thermal analysis (only available if model...
zone trace Trace zone position and velocity.
zone validate This command is new and experimental.
zone water This command initializes pore pressures, changing the effective stresses.

Zone Face commands

zone face apply This command is used to apply boundary conditions at surface...
zone face apply-remove Remove zone face apply conditions, which are described in the...
zone face group Adds a group name s to zone faces included in...
zone face hide Hide or un-hide zone faces in the range.
zone face list List information about zone faces.
zone face select Select or deselect zone faces in the range.
zone face skin Skin the model to automatically generate face groups.
zone face westergaard Applies the Westergaard approximation for the dynamic response of water...
zone face westergaard-remove Removes any applied westergaard condition on the faces in the...

Zone Gridpoint commands

zone gridpoint create Create a single gridpoint.
zone gridpoint fix Fix a property at all gridpoints in the range.
zone gridpoint force-reaction For each gridpoint in the range, in each of the...
zone gridpoint free Free properties at gridpoints in the range.
zone gridpoint group Assign group name s to zone gridpoints in the range.
zone gridpoint initialize Assign or initialize values to all gridpoints in the range.
zone gridpoint list Display gridpoint information in the console.
zone gridpoint merge Attempts to merge all gridpoints in the range.
zone gridpoint system Set the local coordinate system for gridpoints within the range.

Zone Interface commands

zone interface create Create nodes or elements on interface s .
zone interface effective The effective stress will be used in the interface calculation...
zone interface element Manage zone interface elements.
zone interface list Show summary data on interfaces.
zone interface node Configure interface nodes.
zone interface permeability Interfaces are permeable by default.
zone interface tolerance-contact Sets the maximum depth of penetration (of faces that contact...