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Research Abstracts Online
January 2010 - March 2011

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University of Minnesota Twin Cities
College of Science and Engineering
Department of Mechanical Engineering

PI: Sean C. Garrick, Associate Fellow

Modeling and Simulation of Multi-Scale, Multiphase Turbulent Reacting Flows

The Garrick group in the Computational Transport Phenomena Laboratory works to develop mathematical models and numerical tools that provide physically accurate results in a computationally affordable manner. Particularly, they consider the physics and chemistry of turbulent, reacting, multi-phase flows. Scientifically, they attempt to shed some light on underlying fluid-particle interactions, and from an engineering point of view, they attempt to make these computations relevant to industrial processes and practices. The group develops models that span nano- and micro-scale particles and dynamics. Their primary efforts are now in the area of large eddy simulation (LES) and direct numerical simulation (DNS). DNS is a technique that solves governing equations without the use of "models” (i.e. all the relevant length and time scales are resolved). While DNS works well for elucidating the underlying physics and chemistry of turbulent reacting flows, it is cost/computationally-prohibitive for many engineering applications. LES has the ability to reduce the compute time by two orders of magnitude or more.

Current investigations include: modeling nano-particle dynamics and surface chemistry in turbulent reacting flows; modeling and simulation of virtual sorbent beds for mercury capture; and advanced CFD modeling of sprays with adjuvants and non-Newtonian fluids.

Group Members

Andrew J. Fager, Undergraduate Student
Jun Liu, Graduate Student
Nathan Murfield, Graduate Student
Jouni Pyykonen, Research Associate