Dispersion Relations in a Stationary Plasma
Journal Article
·
· Physics of Fluids (New York)
The two-fluid theory for a fully ionized, macroscopically neutral plasma is used to examine small-amplitude normal mode oscillations in an infinite, homogeneous medium for three cases: no applied magnetic field; a magnetic field in the direction of wave propagation; and a magnetic field perpendicular to the direction of wave propagation. In the field-free case, which was treated in a similar way by Pai, the dispersion relations for the three simplest types of plasma oscillations - longitudinal electron waves, longitudinal ion waves, and transverse waves - are verified and the properties of each of these waves are described. In the second and third cases, the influence of an applied magnetic field on the normal mode solutions is studied and the results of this complete two-fluid theory are compared with analogous results obtained in the simpler theories of Appleton (magneto-ionic theory) and of Alfven (magnetohydrodynamics).
- Research Organization:
- Raytheon Co., Wayland, Mass.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-032635
- OSTI ID:
- 4837637
- Journal Information:
- Physics of Fluids (New York), Journal Name: Physics of Fluids (New York) Journal Issue: 10 Vol. 4; ISSN 0031-9171; ISSN PFLDAS
- Publisher:
- American Institute of Physics
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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