Investigation of Transient Contaminant Dispersion in Mock Urban Canopies
Abstract
Contaminant plumes produced by fires, explosions, accidental releases, or terrorist acts in urbans settings can be deadly to large numbers of people. In particular, first responders or combatants in urban arenas of conflict can be exposed to the devastating initial conditions but also to the hazards associated with lingering contaminants that are slow to disperse. The dispersion of chemicals, particles, or biological agents in these plumes is typically dominated by turbulent transport as the normally highly turbulent plume interacts with the turbulent atmospheric boundary layer in the context of an extremely complex urban environment. Three-dimensional measurements are critical to understand the physical mechanisms behind plume dispersion and to test and validate analytical and computational models for predicting velocities and contaminant concentrations. 3D mean velocity and concentration measurements throughout 3D printed replicas of real world urban environments can be acquired using Magnetic Resonance Velocimetry (MRV) and Magnetic Resonance Concentration (MRC) methods.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 14, 2022
- Accession Number
- AD1173507
Entities
People
- Andrew Banko
- Christopher J. Elkins
- John K. Eaton
Organizations
- Stanford University