The electrification of volcanic ash plumes and the occurrence of volcanic lightning are now
known to be common phenomena during explosive volcanic eruptions. This knowledge …

The electrification of volcanic plumes has been described intermittently since at least the
time of Pliny the Younger and the 79 AD eruption of Vesuvius. Although sometimes …

The current ongoing rise in environmental pollution is leading research efforts toward the
adoption of propulsion systems powered by gaseous fuels like hydrogen, methane, e-fuels …

Under-expanded jets appear in various processes of engineering interest and, among
others, during the injection of gaseous fuels in the combustion chamber. In this context, large …

Measurements and simulations show that plasma relaxation processes in the reversed field
pinch drive and redistribute both magnetic flux and momentum. To examine this relaxation …

The Multi-scale Laboratories (MSL) are a network of European laboratories bringing
together the scientific fields of analogue modeling, paleomagnetism, experimental rock and …

We have implemented an axisymmetric fluid model of streamers in the AMReX open-source
library. Our implementation is based on the first-order fluid model with a local field …

Behind the iconic “pop!” accompanying the uncorking of a champagne bottle hides a gas
flow of surprising complexity. Its modeling is made delicate by its supersonic nature, its …

6.1 Sparks below a sharp boundary of condensation in fast decompression experiments 99
6.2 Image sequence of condensation cloud formation and sparks............ 101 6.3 Structure of …

Behind the iconic “pop!" accompanying the uncorking of a champagne bottle hides a gas ow
of surprising complexity. Its modeling is made delicate by its supersonic nature, its …