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Pyroclastic density currents at Ruapehu volcano; New Zealand
2016Pyroclastic density currents (PDCs) are hazardous mixtures of volcanic particles and gas that travel along the flanks of a volcano due to a higher bulk density than the surrounding atmosphere. Understanding the frequencies, magnitudes, and different PDC generation and transport processes is essential for understanding the PDC hazard.
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Insights into Acoustic Sources from Pyroclastic Density Currents
Pyroclastic Density Currents (PDCs) are deadly, highly destructive, fast-moving, ground-hugging, mixtures of hot gas and volcanic particles. PDC high velocities, dynamic pressures, and temperatures make direct field measurements extremely challenging.Anna Perttu +5 more
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Deposits of Pyroclastic Density Currents
2015Richard J. Brown, Graham D. M. Andrews
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Rates of volcanic ash production in pyroclastic density currents
2018abstract
Cioni R +3 more
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Multiphase flow dynamics of stratified pyroclastic density currents
2013We 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. +3 more
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Parallel numerical simulation of pyroclastic density currents
Science and Supercomputing at Cineca, 2003T. Esposti Ongaro +3 more
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