Chemical reactions occur in a wide variety of flowing systems. In order for a reaction to actually occur, these reactants must first come into contact. As a result, mixing drives reactions in these types of systems. Non-uniform flow fields are known to enhance mixing, and as a result impact reaction rates in reactive transport. This project uses a Lagrangian reactive particle tracking method to model reactive transport through idealized two-dimensional heterogeneous porous media. The ultimate goal of this work is to develop an upscaled model that accurately accounts for these smaller scale processes without needing to resolve them. To do this, work has been done to identify which features of the flow most control mixing and reactions. Flow deformation metrics based on velocity gradients such as the Okubo-Weiss parameter were considered and efforts in finding a connection between conservative and reactive transport were made.
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