Fire suppression modeling depends on accurate characterization of the injection from fire sprinklers. Numerical modeling, particularly the volume of fluid (VOF) method, has been applied to understanding the injec tion pattern from a sprinkler. The simulations have been performed with the VOF solver found in OpenFOAM. The liquid volume flux distribution in the vicinity of the deflector has been simulated. Simulation results have been compared against experimentally measured data for a typical pendent fire sprinkler (K-factor of 115.2 lpm/bar1/2) sprinkler with a flow rate of 1.89 L/s. Spatially resolved liquid volume flux comparisons are made. Specifically, results for the elevation angle distribution of volumetric flux compare favorably. This study establishes the feasibility of using VOF modeling to adequately obtain injection patterns, while identifying needed model improvements. The simulation results can subsequently be used to provide insight into sprinkler geometry effects on spray characteristics and to initialize the sprinkler spray in fire suppression simulations.