  This research has found a novel computational efficient method of modelling
flow at low Reynolds number through fracture networks. The numerical analysis
was performed by connecting Hele-Shaw cells to investigate the effect of the
intersection to the pressure field and hydraulic resistance for given inlet and
outlet pressure values. In this analysis, the impact of intersecting length,
intersecting angle and fracture aperture on the fluid flow was studied. For
this purpose, two models with different topologies were established. The
Hele-Shaw simulation results for hydraulic resistance, pressure and velocity
agreed well with results obtained by solving the full Navier-Stokes equations
(NSE). The results indicated an approximately linear relationship between
intersection length and hydraulic resistance. Specifically, an increase in the
intersection length increases the flow rate and as a result, the pressure along
the intersection length decreases. The error associated with employing the
Hele-Shaw approximation in comparison with NSE is less than 2%. All
Investigations were performed in the Reynolds Number range of 1-10.
