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Showing 1–10 of 10 results

Advanced filters: Author: Corrado Cimarelli Clear advanced filters

Multiphase turbulent flow explains lightning rings in volcanic plumes

The concentric lightening rings around the Hunga-Tonga vent can be explained by spontaneous turbulence-induced particle clustering in rings where particle collision could lead to efficient charge concentration, according to a multiphase numerical plume model.

Mie Ichihara
Pablo D. Mininni
Chris Vagasky
ResearchOpen Access15 Nov 2023
Communications Earth & Environment

Volume: 4, P: 1-12
Explosive eruption style modulates volcanic electrification signals

The electrical activity in an eruption column is influenced by mass eruption rate and eruptive style and could therefore be used to monitor eruption evolution, according to an analysis of electrical signals from the 2021 Tajogaite eruption, La Palma

Caron E. J. Vossen
Corrado Cimarelli
Alec J. Bennett
ResearchOpen Access09 Jul 2024
Communications Earth & Environment

Volume: 5, P: 1-13
Nanoscale silicate melt textures determine volcanic ash surface chemistry

Nanotexture-sensitive fracture focusing during magma fragmentation determines the surface chemistry of volcanic ash particles, thereby modifying the reactive interface and subsequent environmental impacts

Adrian J. Hornby
Paul M. Ayris
Donald B. Dingwell
ResearchOpen Access15 Jan 2024
Nature Communications

Volume: 15, P: 1-10
Volcanic ash melting under conditions relevant to ash turbine interactions

Volcanic ash is hazardous to jet engines, with high temperatures in turbines causing ash particles to melt and stick to the engine, adversely affecting turbine function. Here, the authors explore the spectrum of natural ash compositions and their behaviour and impact at high temperatures.

Wenjia Song
Yan Lavallée
Donald B. Dingwell
ResearchOpen Access02 Mar 2016
Nature Communications

Volume: 7, P: 1-10
Stability of volcanic ash aggregates and break-up processes

Sebastian B. Mueller
Ulrich Kueppers
Donald B. Dingwell
ResearchOpen Access07 Aug 2017
Scientific Reports

Volume: 7, P: 1-11
Thermal vesiculation during volcanic eruptions

A textural examination of volcanic ash erupted from Santiaguito volcano in Guatemala coupled with an analysis of the geophysical signals indicates that rapid heating during fault friction can cause melting and vesiculation (development of bubbles) of hydrated silicic magma, thus strongly affecting magma strength and eruptive behaviour.

Yan Lavallée
Donald B. Dingwell
Gustavo Chigna
Research23 Dec 2015
Nature

Volume: 528, P: 544-547
The electrical signature of mafic explosive eruptions at Stromboli volcano, Italy

Caron E. J. Vossen
Corrado Cimarelli
Jacopo Taddeucci
ResearchOpen Access31 May 2022
Scientific Reports

Volume: 12, P: 1-13
Experimental generation of fulgurite under realistic lightning discharge conditions

A. Zeynep Çalışkanoğlu
Alessandra S. B. Camara
Kai-Uwe Hess
ResearchOpen Access19 Jul 2023
Scientific Reports

Volume: 13, P: 1-10
Standing shock prevents propagation of sparks in supersonic explosive flows

Images of electrical sparks in shock tube experiments with supersonic outflows show how standing shocks regulate electrical breakdown. The resulting radio frequency emission could diagnose flow structure in other explosive events such as volcanic eruptions.

Jens von der Linden
Clare Kimblin
Jason Sears
ResearchOpen Access20 Sept 2021
Communications Earth & Environment

Volume: 2, P: 1-9
Multidisciplinary investigation reveals the earliest textiles and cinnabar-coloured cloth in Iberian Peninsula

Margarita Gleba
M. Dolores Bretones-García
Rafael M. Martínez-Sánchez
ResearchOpen Access09 Nov 2021
Scientific Reports

Volume: 11, P: 1-11