# fracture compute command

Syntax

fracture compute keyword <range>

Primary keywords:

Compute fracture statistics. Various density measures of fractures, filtered by range, can be computed.

average-trace-length s (3D only)

Return the average trace length, where traces are the intersections between the fractures and the planar geometry set with name s.

center-density

Return the fracture center density (i.e, P20 in 2D and P30 in 3D).

mass-density

Return the fracture mass density (i.e., P21 in 2D and P32 in 3D).

p10 keyword

Return the P10 along the line defined by begin and end, or along the geometry edges defined with the geometry keyword.

geometry s

P10 is measured along the edges of the geometry set with name s. Cannot be given with the begin or end keywords.

begin v

Define the starting point of the reference line where P10 is measured. Cannot be given with the geometry keyword.

end v

Define the ending point of the reference line where P10 is measured. Cannot be given with the geometry keyword.

trace-center-density s (3D only)

Return the trace center density (i.e., P20), where traces are the intersections between fractures and the planar geometry set with name s.

trace-mass-density s (3D only)

Return the trace mass density (i.e., P21), where traces are the intersections between the fractures and the planar geometry set with name s.

percolation

Return the percolation parameter.

Usage Example

The following example illustrates how the fracture compute command can be used to print fracture statistics (3D).

model new
model random 10000
model domain extent -5 5
;Generate fractures using the default template
fracture generate fracture-count 100
;Create a line for p10 calculation
geometry set 'p10line'
geometry edge create by-position (-5,0,0) (5,0,0)
;List some information
fracture compute mass-density
fracture compute center-density
;List the p10 for both the line and by specifying the line ends
fracture compute p10 begin (-5,0,0) end (5,0,0)
fracture compute p10 geometry 'p10line'