Pyroclastic currents are described as gravity currents, and the classic conceptual model
gives a first‐order importance to the density of such currents. This directs quantitative …

Explosive volcanic eruptions produce high-velocity turbulent jets that can form either a
stable buoyant Plinian column or a collapsing fountain producing pyroclastic density …

The longevity of submarine plumes generated at sea-floor hydrothermal systems constrains
the hydrothermal input of chemical species into the deep-ocean. Decades of observations of …

We study the dynamics of hydrothermal plumes with the 3D time-dependent, Eulerian,
adaptive mesh refinement code Gerris, which solves the equations of viscous …

Major volcanic hazards in the Lesser Antilles arc include powerful Plinian explosive
eruptions that inject ash high into the atmosphere and produce dangerous pyroclastic …

This work takes place in the context of potential hazards in the use of hydrogen in fuel cells.
The present article describes comparisons between PIV measurements performed on a two …

The maximum height of an explosive volcanic column, H, depends on the 1/4th power of the
eruptive mass flux, Q, and on the 3/4th power of the stratification of the atmosphere, N …

Turbulent air entrainment into explosive volcanic jets determines whether an eruption will
produce buoyant plumes, pyroclastic density currents, or both. Most previous studies of …

Abstract The 2008 Chaitén Volcano eruption began on 2 May 2008 with an explosive phase
that injected large amounts of tephra into the atmosphere. During the first week of the …

The rate at which atmosphere is entrained and mixed into relatively dense explosive
volcanic jets of gas and pyroclasts (ash, lapilli) determines whether they rise into the …