  In this paper, we introduce Pysimfrac, a open-source python library for
generating 3-D synthetic fracture realizations, integrating with fluid
simulators, and performing analysis. Pysimfrac allows the user to specify one
of three fracture generation techniques (Box, Gaussian, or Spectral) and
perform statistical analysis including the autocorrelation, moments, and
probability density functions of the fracture surfaces and aperture. This
analysis and accessibility of a python library allows the user to create
realistic fracture realizations and vary properties of interest. In addition,
Pysimfrac includes integration examples to two different pore-scale simulators
and the discrete fracture network simulator, dfnWorks. The capabilities
developed in this work provides opportunity for quick and smooth adoption and
implementation by the wider scientific community for accurate characterization
of fluid transport in geologic media. We present Pysimfrac along with
integration examples and discuss the ability to extend Pysimfrac from a single
complex fracture to complex fracture networks.
