63 citations · 201 across the 8 of their papers we have counts for
8 papers
Electrostatic Bursts Generated by the Ion-Ion Acoustic Instability with Solar Wind Plasma Parameters
Mahmoud Saad Afify, Jürgen Dreher, Kevin Schoeffler +2
This study is motivated by recent observations from the Parker Solar Probe (PSP) mission, which have been identified as the ion-acoustic waves from 15 to 25 solar radii. These obse…
Numerical Simulation of Current Sheet Formation in a Quasi-Separatrix Layer using Adaptive Mesh Refinement
Frederic Effenberger, Kay Thust, Lukas Arnold +2
The formation of a thin current sheet in a magnetic quasi-separatrix layer (QSL) is investigated by means of numerical simulation using a simplified ideal, low-, MHD model. The…
A semi-implicit Hall-MHD solver using whistler wave preconditioning
Lukas Arnold, Juergen Dreher, Rainer Grauer
The dispersive character of the Hall-MHD solutions, in particular the whistler waves, is a strong restriction to numerical treatments of this system. Numerical stability demands a…
Three-dimensional MHD simulation of expanding magnetic flux ropes
L. Arnold, J. Dreher, R. Grauer +2
Three-dimensional, time-dependent numerical simulations of the dynamics of magnetic flux ropes are presented. The simulations are targeted towards an experiment previously conducte…
Density-PDFs and Lagrangian Statistics of highly compressible Turbulence
Christoph Beetz, Christian Schwarz, Jürgen Dreher +1
We report on probability-density-functions (PDF) of the mass density in numerical simulations of highly compressible hydrodynamic flows and the corresponding structure formation of…
Impact of the floating-point precision and interpolation scheme on the results of DNS of turbulence by pseudo-spectral codes
Holger Homann, Jürgen Dreher, Rainer Grauer
In this paper we investigate the impact of the floating-point precision and interpolation scheme on the results of direct numerical simulations (DNS) of turbulence by pseudo-spectr…