Plasma Propulsion by a Rapidly Varying Magnetic Field

1960 ◽  
Vol 31 (8) ◽  
pp. 1437-1448 ◽  
Author(s):  
Milton M. Klein ◽  
Keith A. Brueckner
Keyword(s):  
Magnetic Field ◽  
Plasma Propulsion

ENERGY TRANSFER BETWEEN A MOVING BODY AND A MAGNETIC FIELD

1962 ◽  
Vol 40 (3) ◽  
pp. 301-316 ◽  
Author(s):  
P. R. Smy
Keyword(s):  
Magnetic Field ◽  
Energy Transfer ◽  
Scaling Laws ◽  
Maximum Energy ◽  
The Body ◽  
Initial Kinetic Energy ◽  
Plasma Propulsion ◽  
Moving Body ◽  
Direct Energy ◽  
Oscillating Magnetic Field

The inductive transfer of energy between a moving body and a magnetic field is discussed together with its significance in the fields of direct energy conversion and plasma propulsion. The investigation is centered upon the interaction between a moving body and a sinusoidally oscillating magnetic field of idealized distribution. Scaling laws governing the various physical variables of the interaction are derived, and the values of the resultant parameters necessary to obtain maximum energy transfer are calculated. It is found that under these conditions the initial kinetic energy of the body can be increased by ~14× or decreased to ~1/14 during the interaction. The relation between these parameters (and hence the energy transfer) and the all important energy transfer/recirculating energy ratio is obtained and it is shown that, in fact, a working energy factor ~6 (or 1/6) is a more feasible proposition.

Study on electromagnetic plasma propulsion using rotating magnetic field acceleration scheme

2017 ◽  
Vol 24 (4) ◽  
pp. 043505 ◽  
Author(s):  
T. Furukawa ◽  
K. Takizawa ◽  
D. Kuwahara ◽  
S. Shinohara
Keyword(s):  
Magnetic Field ◽  
Rotating Magnetic Field ◽  
Plasma Propulsion

scholarly journals Magneto-Gas Kinetic Method for Nonideal Magnetohydrodynamics Flows: Verification Protocol and Plasma Jet Simulations

2015 ◽  
Vol 137 (8) ◽  
Author(s):  
Daniel B. Araya ◽  
Frans H. Ebersohn ◽  
Steven E. Anderson ◽  
Sharath S. Girimaji
Keyword(s):  
Magnetic Field ◽  
Numerical Solutions ◽  
Kinetic Method ◽  
Plasma Propulsion ◽  
Promising Tool ◽  
Hall Effects ◽  
Theoretical Predictions ◽  
Flow Phenomena ◽  
Induction Equation ◽  
The One

In this work, the gas-kinetic method (GKM) is enhanced with resistive and Hall magnetohydrodynamics (MHD) effects. Known as MGKM (for MHD–GKM), this approach incorporates additional source terms to the momentum and energy conservation equations and solves the magnetic field induction equation. We establish a verification protocol involving numerical solutions to the one-dimensional (1D) shock tube problem and two-dimensional (2D) channel flows. The contributions of ideal, resistive, and Hall effects are examined in isolation and in combination against available analytical and computational results. We also simulate the evolution of a laminar MHD jet subject to an externally applied magnetic field. This configuration is of much importance in the field of plasma propulsion. Results support previous theoretical predictions of jet stretching due to magnetic field influence and azimuthal rotation due to the Hall effect. In summary, MGKM is established as a promising tool for investigating complex plasma flow phenomena.

A Compact Disk Type Plasma Propulsion System with Modulated Magnetic Field for Nanoscale Space Vehicles

2008 ◽  
Author(s):  
Takeshi Fukuda ◽  
Satoshi Ueda ◽  
Yukihiro Ohnishi ◽  
Michiaki Inomoto ◽  
Takashi Abe
Keyword(s):  
Magnetic Field ◽  
Propulsion System ◽  
Space Vehicles ◽  
Compact Disk ◽  
Plasma Propulsion

Magnetic-field strengths from optical polarization data

1967 ◽  
Vol 31 ◽  
pp. 381-383
Author(s):  
J. M. Greenberg
Keyword(s):  
Magnetic Field ◽  
Optical Polarization ◽  
Polarization Data ◽  
Term Model ◽  
Source Of Information ◽  
Field Strengths

Van de Hulst (Paper 64, Table 1) has marked optical polarization as a questionable or marginal source of information concerning magnetic field strengths. Rather than arguing about this–I should rate this method asq+-, or quarrelling about the term ‘model-sensitive results’, I wish to stress the historical point that as recently as two years ago there were still some who questioned that optical polarization was definitely due to magnetically-oriented interstellar particles.

Observing the galactic magnetic field

1967 ◽  
Vol 31 ◽  
pp. 375-380
Author(s):  
H. C. van de Hulst
Keyword(s):  
Magnetic Field ◽  
Fair Agreement ◽  
Solar Neighbourhood ◽  
Galactic Magnetic Field ◽  
The Magnetic Field

Various methods of observing the galactic magnetic field are reviewed, and their results summarized. There is fair agreement about the direction of the magnetic field in the solar neighbourhood:l= 50° to 80°; the strength of the field in the disk is of the order of 10-5gauss.

Structure in the radiation of the galactic disk

1967 ◽  
Vol 31 ◽  
pp. 355-356
Author(s):  
R. D. Davies
Keyword(s):  
Magnetic Field ◽  
Galactic Disk ◽  
Galactic Magnetic Field ◽  
Measured Polarization

Observations at various frequencies between 136 and 1400 MHz indicate a considerable amount of structure in the galactic disk. This result appears consistent both with measured polarization percentages and with considerations of the strength of the galactic magnetic field.

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