Contaminate Dispersion in a Model Urban Canopy

Summary: This project analyzes the release of a contaminant in an urban building array using magnetic resonance velocimetry (MRV) and magnetic resonance concentration (MRC) techniques which yield three-component velocity and concentration data. An MRI compatible array was designed to include dual injection for increased plume mixing in accordance with specifications from Sandia National Labs (SNL) and guidance from faculty at Stanford University. Two complete sets of experiments were conducted in which the dual injectors operated in a steady and pulsatile manner. The purpose of this project is to measure and analyze data to assist SNL in validating their computational model SIERRA-FUEGO. High fidelity computational simulations are run on the same geometry with matched inlet conditions in order to help Sandia National Labs validate their computational code capability to predict the source location of the dispersion event.

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