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Publications associées (33)
Solar Wind Protons in the Diamagnetic Cavity at Comet 67P/Churyumov-Gerasimenko
The plasma environment at a comet can be divided into different regions with distinct plasma characteristics. Two such regions are the solar wind ion cavity, which refers to the part of the outer coma that does not contain any solar wind ions anymore; and ...
AMER GEOPHYSICAL UNION2023Effect of femtosecond laser-induced high pressure on fused silica polymorphism
High-pressure studies in silica are of great interest to earth and planetary sciences. Highpressure phases are rarely found in nature as a result of shock events like meteorite impacts orvolcanic events in nature. Recreating these phases remains a challeng ...
EPFL2022The Alfvenic nature of chromospheric swirls
Aleksi Antoine Bossart, Andrea Francesco Battaglia
Context. Observations show that small-scale vortical plasma motions are ubiquitous in the quiet solar atmosphere. They have received increasing attention in recent years because they are a viable candidate mechanism for the heating of the outer solar atmos ...
EDP SCIENCES S A2021A Study of Several Artificial Viscosity Models within the Discontinuous Galerkin Framework
Dealing with strong shocks while retaining low numerical dissipation traditionally has been one of the major challenges for high order methods like discontinuous Galerkin (DG). In the literature, shock capturing models have been designed for DG based on va ...
GLOBAL SCIENCE PRESS2020Development of a real-time algorithm for detection of the divertor detachment radiation front using multi-spectral imaging
Christian Gabriel Theiler, Artur Perek, Kevin Henricus Annemarie Verhaegh, Wouter Vijvers
In this paper we present a novel algorithm to extract the optical plasma boundary and radiation front for detached divertor plasmas. We show that reliable detection of the divertor leg and radiation front is possible using lightweight image processing tool ...
2020Comparative study between Cubic and Ellipsoidal Fokker-Planck kinetic models
Motivated by improving the performance of particle-based Monte-Carlo simulations in the transitional regime, Fokker–Planck kinetic models have been devised and studied as approximations of the Boltzmann collision operator. By generalizing the linear drift ...
2019Detailed experiments on weakly deformed cavitation bubbles
Mohamed Farhat, Nicolas Dorsaz, Danail Obreschkow, Philipp Kobel, Outi Supponen
We present high-precision experiments conducted with the aim to better characterise weak deformations of single cavitation bubbles. Using two needle hydrophones and a high-speed photodetector, we record the timings of shock waves and luminescence emitted a ...
SPRINGER2019