Results 171 to 180 of about 5,469 (201)

Dynamics and hazards of stratified pyroclastic density currents

2014
In the context of a study on pyroclastic flow hazards in caldera settings, we have analyzed the role of particle sedimentation and stratification on the kinematics of particle-driven gravity currents. By means of a two-dimensional multiphase flow numerical model we have simulated the propagation of monodisperse particle-laden currents triggered by the ...
Esposti Ongaro , Tomaso, Orsucci, Simone, CORNOLTI, FULVIO, Neri, Augusto   +3 more
openaire   +1 more source

Multiphase flow dynamics of stratified pyroclastic density currents

2013
We have simulated the dynamics of pyroclastic density currents to quantify the influence of the vertical stratification of particle concentration on their propagation and runout. The polydisperse pyroclastic mixture is described by discretizing the grain-size distribution into N particle classes and by adopting a non-equilibrium Eulerian transport ...
Orsucci, S., Espositi, Ongaro T., Neri, A., CORNOLTI, FULVIO   +3 more
openaire   +1 more source

Fast and destructive density currents created by ocean-entering volcanic eruptions

Science, 2023
Michael A Clare, Isobel A Yeo, Sally J Watson   +2 more
exaly  

Density currents reduce nitrous oxide emissions in a tributary bay of Three Gorges Reservoir

Water Research, 2021
Xiao Juan Guo, Shangbin Xiao, Andreas Lorke   +2 more
exaly  

Rates of volcanic ash production in pyroclastic density currents

2018
abstract
Cioni R, d'Oriano C, Mundula F, Bertagnini A   +3 more
openaire   +1 more source

Pyroclastic Density Currents

2015
Josef Dufek, Tomaso Esposti Ongaro, Olivier Roche   +2 more
openaire   +1 more source

Hazards from Pyroclastic Density Currents

2015
Paul D. Cole, Augusto Neri, Peter J. Baxter   +2 more
openaire   +1 more source

A laboratory study of plumes associated with pyroclastic density currents

Volcanic plumes associated with propagating pyroclastic density currents can rise tens of kilometers into the atmosphere, dispersing fine ash particles over large areas with a potential hazard for aviation safety. Such plumes originate from the buoyancy reversal of the pyroclastic density currents caused by the entrainment and heating of ambient air ...
Guillaume Carazzo, Geoffrey Robert
openaire   +1 more source

Multiphase flow behaviour and hazard prediction of pyroclastic density currents

Nature Reviews Earth & Environment, 2020
Gert Lube, Eric Breard, Tomaso Esposti Ongaro   +2 more
exaly  

Deposits of Pyroclastic Density Currents

2015
Richard J. Brown, Graham D. M. Andrews
openaire   +1 more source