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Dispersion of particles by a strong explosion
Timothy C DuBois1, Milan Jamriska1, Alex Skvortsov1
1Defence Science and Technology Organisation, 506 Lorimer Street, Fishermans Bend, Victoria 3207, Australia.
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|September 19, 2015
Summary
This study models particle dispersion from explosions, revealing simple scaling laws based on blast energy, medium properties, and particle characteristics. The findings are validated by simulations and offer experimentally testable predictions.
Area of Science:
- Physics
- Fluid Dynamics
- Computational Science
Background:
- Particle transport dynamics near localized high energy events are complex.
- Numerous physical parameters influence particle dispersion, including medium properties and particle characteristics.
Purpose of the Study:
- To develop a conceptual model for particle dispersion from explosions.
- To establish simple scaling laws for particle dispersion.
- To identify key parameters influencing particle transport dynamics.
Main Methods:
- Development of a conceptual model for particle dispersion.
- Establishment of scaling laws relating dispersion to energy, medium, and particle properties.
- Validation of the model using numerical simulations.
Main Results:
- Simple scaling laws for particle dispersion were established.
- Dependencies on blast energy, medium properties, particle characteristics, and initial position were identified.
- Model predictions were validated against numerical simulations.
Conclusions:
- The conceptual model provides a framework for understanding particle dispersion from explosions.
- The established scaling laws offer predictive capabilities for experimentally verifiable scenarios.
- The model has potential for broader applications in related physical phenomena.
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