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Instabilities in a simplified Fermi-like model with Krook-type collisions, intrinsic damping, and a source
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10.1063/1.4817819
/content/aip/journal/pop/20/8/10.1063/1.4817819
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/8/10.1063/1.4817819
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Initial distribution function of particles in phase space (“bump on tail”-type); horizontal axis—positions of the particles, vertical axis—particle velocities (normalized units).

Image of FIG. 2.
FIG. 2.

(Left) Wave amplitude versus time (arbitrary units)—pure collisionless case (no damping, no source, no collisions); (right) the appropriate distribution function in phase space at the moment  = 50.

Image of FIG. 3.
FIG. 3.

(Left) Wave amplitude versus time—only some intrinsic damping included; (right) the corresponding distribution function in phase space at the moment  = 28.

Image of FIG. 4.
FIG. 4.

Wave amplitude versus time—the case of a balance between kinetic drive and intrinsic damping in time up to  = 2.

Image of FIG. 5.
FIG. 5.

Changes of the distribution function in phase space corresponding to the wave amplitude evolution shown in Fig. 4 ; upper figures (from left) correspond to the times:  = 0.5 and  = 2; lower figure  = 8.

Image of FIG. 6.
FIG. 6.

Wave amplitude versus time—the case of relatively small value of the collision frequency parameter ν; intrinsic damping equal to kinetic drive, .

Image of FIG. 7.
FIG. 7.

Wave amplitude versus time—the steady state value and the initial amplitude value are the same; .

Image of FIG. 8.
FIG. 8.

Plots of the distribution functions in space phase; ; (left) ; (right) ; independent of time.

Image of FIG. 9.
FIG. 9.

(Left) Wave amplitude versus time— and ; (right) the distribution function in phase space at the time  = 100.

Image of FIG. 10.
FIG. 10.

Wave amplitude versus time—the case of .

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/content/aip/journal/pop/20/8/10.1063/1.4817819
2013-08-12
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Instabilities in a simplified Fermi-like model with Krook-type collisions, intrinsic damping, and a source
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/8/10.1063/1.4817819
10.1063/1.4817819
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