Pyroclastic density currents (PDCs) are mixtures of two components, namely solid particles
and fluid (gas) phase. They macroscopically behave as dense, multiphase gravity currents …

Modelling has been used in the study of volcanic systems for more than 100 years, building
upon the approach first applied by Sir James Hall in 1815. Informed by observations of …

Pyroclastic flow eruption large‐scale experiment (PELE) is a large‐scale facility for
experimental studies of pyroclastic density currents (PDCs). It is used to generate high …

Numerical solution of the time-dependent conservation equations for mass, momentum,
specific internal energy, and granular temperature in flows involving gas-particle mixtures is …

Explosive volcanic eruptions can produce eruption plumes and pyroclastic density currents
that can severely damage life and property. While many factors influence eruption plume …

Eruption source parameters (ESP) characterizing volcanic eruption plumes are crucial
inputs for atmospheric tephra dispersal models, used for hazard assessment and risk …

Turbulent fountain flow consists of two distinct stages, the initial 'negatively buoyant jet'(NBJ)
stage, and the fully developed 'fountain'stage. The present study investigates both stages of …

We use SWIFT, a smoothed particle hydrodynamics code, to simulate the evolution of
bubbles inflated by active galactic nuclei (AGNs) jets, as well as their interactions with the …

Volcanic ash in the atmosphere is a hazard to aviation. To predict which areas of airspace
are most likely to be affected by the presence of ash, Volcanic Ash Advisory Centers …

The entrainment of air by turbulent mixing plays a central role in the dynamics of volcanic
eruption clouds, as the amount of entrained air controls the height of the plume. In one …