منابع مشابه
PSFC/JA-04-28 Fluid Formalism for Collisionless Magnetized Plasmas
A comprehensive analysis of the finite-Larmor-radius (FLR) fluid moment equations for collisionless magnetized plasmas is presented. It is based on perturbative but otherwise general solutions for the second and third rank fluid moments (the stress and stress flux tensors) with closure conditions on the fourth rank moment. The single expansion parameter is the ratio between the gyroradius of th...
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Particle in cell (PIC) methods enjoy great success in modeling devices that include moderately dense plasmas. However, as the plasma density becomes high in a large volume, the number of particles to track becomes computationally prohibitive. Reducing the number of particles by creating larger “macro particles” introduces significant numerical error. Alternatively, highdensity plasmas in large ...
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Current-vortex filament solutions to the twofluid plasma equations that describe drift-Alfvén waves are presented. Such filament systems are Hamiltonian. Integrable three and four filament systems are discussed in some detail. A wide variety of orbit topologies exists in the plasma case. Special attention is paid to collapses where all filaments contract to a single point. The differences and e...
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The low-frequency limit of Maxwell equations is considered in the Maxwell-Vlasov system. This limit produces a neutral Vlasov system that captures essential features of plasma dynamics, while neglecting radiation effects. Euler-Poincaré reduction theory is used to show that the neutral Vlasov kinetic theory possesses a variational formulation in both Lagrangian and Eulerian coordinates. By cons...
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ژورنال
عنوان ژورنال: Space Science Reviews
سال: 1985
ISSN: 0038-6308,1572-9672
DOI: 10.1007/bf00218230