Zobrazeno 1 - 10
of 105
pro vyhledávání: '"Dieter Biskamp"'
Autor:
Dieter Biskamp
This book presents an introduction to, and modern account of, magnetohydrodynamic (MHD) turbulence, an active field both in general turbulence theory and in various areas of astrophysics. The book starts by introducing the MHD equations, certain usef
Autor:
E. Schwarz, Dieter Biskamp
Publikováno v:
Physics of Plasmas. 8:3282-3292
Numerical studies of decaying two-dimensional (2D) magnetohydrodynamic (MHD) turbulence are presented. Results concern mainly the decay laws of integral quantities and the scaling properties of spectra and structure functions. The self-similarity of
Autor:
Wolf-Christian Müller, Dieter Biskamp
Publikováno v:
Physics of Plasmas. 7:4889-4900
A comprehensive picture of three-dimensional (3D) isotropic magnetohydrodynamic (MHD) turbulence is presented based on the first 5123-mode numerical simulations performed. Both temporal and spatial scaling properties are studied. For finite magnetic
Publikováno v:
Journal of Computational Physics. 158:239-261
We have developed a three-dimensional anisotropic multigrid solver for simulating nonlocal collisional electrostatic drift-wave turbulence in a tokamak with magnetic shear. As an example, the solver has been used to obtain entire flux-surface solutio
Autor:
Wolf-Christian Müller, Dieter Biskamp
Publikováno v:
Physical Review Letters. 83:2195-2198
Novel decay laws in three-dimensional incompressible magnetohydrodynamic turbulence are obtained by high-resolution numerical simulations with up to ${512}^{3}$ modes and explained by a simple theoretical model. For the typical case of finite magneti
Publikováno v:
Physics of Plasmas. 6:751-758
Electron magnetohydrodynamic (EMHD) turbulence is studied in two- and three-dimensional (2D and 3D) systems. Results in 2D are particularly noteworthy. Energy dissipation rates are found to be independent of the diffusion coefficients. The energy spe
Publikováno v:
Physics of Plasmas. 5:2485-2488
The stability characteristics of a plasma jet V(x)=sech2 x embedded in a parallel magnetic field B(x)=B0 tanh x are investigated. The Kelvin–Helmholtz kink mode, which dominates at small B0, is stabilized at B0=0.46, while the pinch mode remains un
Publikováno v:
Physics of Plasmas. 5:2654-2663
The mechanisms of turbulent transport in the collisional tokamak edge plasma are investigated linearly and nonlinearly, focusing specifically on the transition from resistive modes to ion temperature gradient driven (ηi) modes. Linear eigenvalue cal
Publikováno v:
Journal of Geophysical Research: Space Physics. 103:9165-9176
Collisionless magnetic reconnection is studied using a 2 1/2-dimensional hybrid code including Hall dynamics and electron inertia. The simulations reveal that the dissipation region develops a two-scale structure: an inner electron region and an oute
Publikováno v:
Physical Review Letters. 80:293-296