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Pyroclastic Flows and Related Disasters
Journal of Geography (Chigaku Zasshi), 1987 openaire +2 more sources
Flow and deposition mechanisms of debris avalanches and pyroclastic flows
Flow and deposition mechanisms of debris avalanches and pyroclastic flowsopenaire +1 more source
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Nature, 1977
THE mobility of pyroclastic flows has been described as spectacular1, in particular because of their ability to surmount obstacles in their path. It is relatively easy to estimate the minimum velocities required to climb a given height, if frictional losses are ignored.
P W Francis
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THE mobility of pyroclastic flows has been described as spectacular1, in particular because of their ability to surmount obstacles in their path. It is relatively easy to estimate the minimum velocities required to climb a given height, if frictional losses are ignored.
P W Francis
exaly +2 more sources
On pyroclastic flow emplacement
Journal of Geophysical Research: Solid Earth, 1993 In this note I investigate some theoretical characteristics of pyroclastic flow deposits, assuming that these flows are Bingham fluids, probably the simplest non‐Newtonian fluids. Pyroclastic flows are modeled as laminar debris flows moving on an inclined plane, and their physics is discussed within the classical framework of lubrication theory.
BATTAGLIA, MAURIZIO, Maurizio Battaglia
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Experimental Evidence Links Volcanic Particle Characteristics to Pyroclastic Flow Hazard
Earth and Planetary Science Letters, 2010 Pyroclastic flows represent the most hazardous events of explosive volcanism, one striking example being the famous historical eruption of Vesuvius that destroyed Pompeii (AD 79).
Pierfrancesco Dellino +2 more
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Effects of Pore Pressure in Pyroclastic Flows: Numerical Simulation and Experimental Validation
Geophysical Research Letters, 2017 Pyroclastic flows are mixtures of volcanic gases and particles that can be very hazardous owing to their fluid-like behavior. One possible mechanism to explain this behavior is the reduction of particles friction due to the internal gas pore pressure. To
Laurent Chupin +2 more
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Pyroclastic Flows and Surges Over Water: An Example From the 1883 Krakatau Eruption
Bulletin of Volcanology, 1996 Pyroclastic deposits from the 1883 eruption of Krakatau are described from areas northeast of the volcano on the islands of Sebesi, Sebuku, and Lagoendi, and the southeast coast of Sumatra.
H Sigurdsson
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Models for pyroclastic surges and pyroclastic flows
Journal of Volcanology and Geothermal Research, 1979Pyroclastic surges are low-concentration turbulent flows that form in at least three ways: (1) eruption column collapse (ground surge, base surge), (2) elutriation from the top of a moving pyroclastic flow (ash cloud), and (3) directly from a crater without an accompanying vertical eruption column.∗ Ground surge deposits occur at the base and ash cloud
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Pyroclastic flows modelling using cellular automata
Computers & Geosciences, 2006Cellular automata (CA) and derived computational paradigms represent an alternative approach to differential equations to model and simulating complex fluid dynamical systems, whose evolution depends on the local interactions of their constituent parts.
AVOLIO M. V +5 more
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