## Research Abstracts Online

January 2010 - March 2011

Main TOC ...... Next Abstract

### 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 "modelsâ€ť (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