Results 61 to 70 of about 2,894,075 (299)
Bifurcation in electrostatic resistive drift wave turbulence
, 2007 The Hasegawa-Wakatani equations, coupling plasma density and electrostatic potential through an approximation to the physics of parallel electron motions, are a simple model that describes resistive drift wave turbulence. We present numerical analyses of
Kuo H.-L. +5 more
core +1 more source
Identification of magnetosonic modes in Galactic turbulence with synchrotron polarization [PDF]
, 2019 The equipartition of magnetic and thermal energy in the interstellar medium (ISM) indicates the magneto-hydrodynamic nature of the interstellar turbulence, which can be decomposed into three wave modes: Alfv\'en, fast and slow magnetosonic modes\cite ...
Appleby, Sarah +5 more
core +2 more sources
Multiscale-optimized plasma turbulence simulation on petascale architectures
Computers & Fluids, 2019 We describe the mathematical formulation, outline the numerical discretization, and present performance analysis results for the CGYRO plasma turbulence code.
J. Candy +6 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira +4 more
wiley +1 more source
Simulation of the interaction between plasma turbulence and neutrals in linear devices
Nuclear Materials and Energy, 2017 The interaction between plasma and neutrals within a tokamak dominates the behaviour of the edge plasma, especially in the divertor region. This area is not quiescent, but has significant perturbations in the density and temperature due to turbulent ...
J. Leddy, B. Dudson, H. Willett
doaj +1 more source
Intermittent turbulence in the heliosheath and the magnetosheath plasmas based on Voyager and THEMIS data [PDF]
Nonlinear Processes in Geophysics, 2018 Turbulence is complex behavior that is ubiquitous in space, including the environments of the heliosphere and the magnetosphere. Our studies on solar wind turbulence including the heliosheath, and even at the heliospheric boundaries, also beyond the ...
W. M. Macek +3 more
doaj +1 more source
Fully Kinetic versus Reduced-kinetic Modeling of Collisionless Plasma Turbulence [PDF]
, 2017 We report the results of a direct comparison between different kinetic models of collisionless plasma turbulence in two spatial dimensions. The models considered include a first-principles fully kinetic (FK) description, two widely used reduced models ...
Daniel Grošelj +7 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin +4 more
wiley +1 more source
The Role of the Plasma Current in Turbulence Decrease with Lower Hybrid Waves
EPJ Web of Conferences, 2017 We study the effect of lower hybrid waves on edge turbulence using a set of two Langmuir probes inserted in the scrape-off layer of the Tore Supra tokamak.
Antar Ghassan +2 more
doaj +1 more source
Validity of the Taylor Hypothesis for Linear Kinetic Waves in the Weakly Collisional Solar Wind [PDF]
, 2014 The interpretation of single-point spacecraft measurements of solar wind turbulence is complicated by the fact that the measurements are made in a frame of reference in relative motion with respect to the turbulent plasma.
Howes, G. G. +2 more
core +1 more source