zone face westergaard command

Syntax

zone face westergaard <keyword ...> <range>

Primary keywords:

base    density-water    direction    factor    height

Note

• The following nomenclature / equivalence between FLAC3D and FLAC2D is used:

  • Zone faces = zone surface faces in 3D or zone edges (lines connecting gridpoints) in 2D

  • There is no 2D equivalence for 3D zone edges

Applies the Westergaard approximation for the dynamic response of water to the surface faces in the range. This operates by changing the inertial mass of the gridpoints connected to the surface faces in the range. This command is only available if model configure dynamic has been specified.

As with most zone face commands, this command will only operate on surface faces in the range.

base f

elevation of the base of the reservoir

density-water f

density of the water in the reservoir

direction f

reversal direction of the hydrodynamic wave propagation. This direction must be in the horizontal plane.

factor f

optional coefficient, the default value is 0.743

height f

height of the water in the reservoir