Particle-laden turbulent flows, called dilute pyroclastic density currents, can be generated during explosive volcanic eruptions.
They are the most hazardous events of interaction with buildings and human environments in volcanic areas. A qualitative comparison
with the dusty turbulent shear currents generated after the Twin Towers collapse on September 11, 2001 shows that turbulent,
multiphase
... [Show full abstract] flow-building interaction causes flow separation and recirculation around the buildings. This simple idea could
be applied to dilute pyroclastic density currents, and improved in future by adhoc numerical simulations of flow-building
interaction.
KeywordsParticle-laden turbulent flow-Flow-building interaction-Volcano-Hazard