Project Summary

A blast wave follows the sudden release of a large amount of energy in a fluid - such as the explosion of a nuclear weapon in air. As long as the wave is supersonic, it grows self-similarly, expanding while keeping the same internal structure.

In this project, I investigated blasts at microscopic and macroscopic scales, from the point of view of kinetic theory and hydrodynamics. I focused on blasts in energy-dissipating media, especially granular media (sand, interstellar dust) where energy is lost through inelastic collisions, and tried to clarify the roots of the peculiar scaling behaviors that they display.


  1. Kinetics of blast waves in one-dimensional conservative and dissipative gases
  2. Blast dynamics in a dissipative gas
  3. Microscopic origin of self-similarity in granular blast waves