Numerical Simulations of Reactive Flows PASQUALE CINNELLA Mississippi State University cinnella@erc.msstate.edu Reactive flows can be defined as fluid flows that are significantly affected by chemical reactions (e.g., combustion, dissociation, and biochemical processes) and/or thermodynamic nonequilibrium (e.g., vibrational excitation). Practical applications of reactive fluid flows can be found easily in everyday life, from car engines to heating systems to blood circulation in living beings. Less obvious but equally important areas where reacting and/or nonequilibrium fluid flows play a vital role include aerospace propulsion, manufacturing processes in the electronic industry, and lasers. Common to all these examples is the intimate coupling between fluid dynamics, chemistry, and physics, which renders a detailed understanding of the flow elusive in most cases. The computer revolution has profoundly affected the way scientists and engineers tackle these problems (and many others), allowing a third investigative tool, computer simulation, in addition to the traditional means of theoretical and experimental studies. The dramatic increase in computational capabilities of recent years has translated into significant progress towards the goal of accurately simulating reactive flows. This task is particularly complicated because it requires major advances in two areas, computational fluid dynamics (CFD) and physical modeling. Each area is
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