Colloid retention in porous media in the presence of an energy barrier to deposition is strongly influenced by wedging within the grain to grain contacts and retention in zones where low fluid drag allows retention in secondary energy minima. Modeling of wedging requires fine discretization in grain to grain contact zones in order to obtain accurate near-surface flow fields. Flow fields in 3-D domains are generated using computational fluid dynamics (CFD). The CFD flow fields are further used together with semi-analytical flow field solutions for modeling of colloid transport through porous media. Colloid trajectories are simulated using Lagrangian particle trajectory model that includes both colloid-colloid and colloid-collector interactions. Results are compared between those that applied CFD-generated or semi-analytical fluid flow field. Simulations are also compared with experimental results for colloid retention in the presence of an energy barrier.