摘要:

A tandem mirror with an axisymmetric center cell separated from quadrupole regions by a large mirror ratio throttle coil is considered. Passing particles induce an azimuthal electric field in the center cell that destroys the axisymmetry of the guiding center orbits. It is shown that the resulting neoclassical resonant‐plateau transport is small if dielectric resonances can be avoided.

ISSN:0031-9171    

DOI:10.1063/1.865518

出版商:AIP    

年代:1986

数据来源: AIP

摘要:

A one‐dimensional electrostatic particle simulation model was constructed to investigate an evolution of the parallel electrostatic potential in the presence of a plasma flow along the mirror field. It is shown that a steady‐state, large‐scale dc potential structure is created as a result of a continuous plasma flow injection, and that the resultant potential difference increases in proportion to the ion bulk flow energy. In the magnetospheric environment, the potential difference is found to be able to exceed 2.5 kV.

ISSN:0031-9171    

DOI:10.1063/1.865519

出版商:AIP    

年代:1986

数据来源: AIP

摘要:

An attempt is made to understand the physical basis, consistency, and quantitative accuracy of the ‘‘clump’’ algorithm as applied to the description of fluid fluctuations. Aspects of the scheme appear to be incompatible with well‐established facts about the physics of turbulent fluids.

ISSN:0031-9171    

DOI:10.1063/1.865520

出版商:AIP    

年代:1986

数据来源: AIP

摘要:

Dissipative drift‐wave turbulence, the type of turbulence studied by Terry and Diamond [Phys. Fluids28, 1419 (1985)], is shown to differ significantly from homogeneous Navier–Stokes turbulence, the type of turbulence from which Krommes draws the intuition and results used in his comparison. These differences make extrapolations from one case to the other unjustified and misleading. In its own right, clump theory is shown to compare well with laboratory and simulation data representing turbulence relevant to the theoretical model.

ISSN:0031-9171    

DOI:10.1063/1.865521

出版商:AIP    

年代:1986

数据来源: AIP

摘要:

The smallest total collisional entropy production rate technique of choosing among multiple ambipolar roots is contrasted with a linearized stability method in which only the ambipolar potential is perturbed.

ISSN:0031-9171    

DOI:10.1063/1.865522

出版商:AIP    

年代:1986

数据来源: AIP

ISSN:0031-9171    

DOI:10.1063/1.865523

出版商:AIP    

年代:1986

数据来源: AIP

ISSN:0031-9171    

DOI:10.1063/1.866025

出版商:AIP    

年代:1986

数据来源: AIP