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Large-Scale Simulation of Complex Flows

Large-Scale Simulation of Complex Flows Investigators: F. Mashayek, MIE/UIC; D. Kopriva/FSU; G. Lapenta/LANL Prime Grant Support: ONR, NSF. Problem Statement and Motivation.

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Large-Scale Simulation of Complex Flows

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  1. Large-Scale Simulation of Complex Flows Investigators: F. Mashayek, MIE/UIC; D. Kopriva/FSU; G. Lapenta/LANL Prime Grant Support: ONR, NSF Problem Statement and Motivation The goal of this project is to develop advanced computational techniques for prediction of various particle/droplet-laden turbulent flows without or with chemical reaction. These techniques are implemented to investigate, in particular, liquid-fuel combustors for control of combustion and design of advanced combustors based on a counter-current shear concept. The experimental components are conducted at the University of Minnesota and the University of Maryland. Technical Approach Key Achievements and Future Goals • Turbulence modeling and simulation • Direct numerical simulation (DNS) • Large-eddy simulation (LES) • Reynolds averaged Navier-Stokes (RANS) • Droplet modeling • Probability density function (PDF) • Stochastic • Combustion modeling • PDF • Eddy-breakup • Flamelet • Flow simulation • Spectral element • Finite volume • Finite element • Pioneered DNS of evaporating/reacting droplets in compressible flows. • Developed a multidomain spectral element code for large clusters. • Developed user-defined functions (UDFs) for implementation of improved models in the CFD package Fluent. • Developed several new turbulence models for particle/droplet-laden turbulent flows. • In the process of development of a new LES code with unstructured grid. • Investigating advanced concepts for liquid fuel combustors based on counter-current shear flow.

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