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One-dimensional hybrid-direct kinetic simulation of the discharge plasma in a Hall thruster
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Image of FIG. 1.
FIG. 1.

Typical operational condition inside the Hall thruster channel. Magnetic field remains static during operation.

Image of FIG. 2.
FIG. 2.

Time averaged results of macroscopic parameters vs. axial position. (a) Number density of heavy species and (b) potential and electron temperature. Dashed lines: HDK-Vlas, Solid lines: HDK-Cont, and Triangles: HPIC.

Image of FIG. 3.
FIG. 3.

Logarithmic plot of electron mobility and ion number density vs. axial position in the acceleration region. Dashed lines: HDK-Vlas and Solid lines: HDK-Cont.

Image of FIG. 4.
FIG. 4.

Mean velocity of neutral atoms vs. axial position. Dashed line: HDK-Vlas and Solid line: HDK-Cont.

Image of FIG. 5.
FIG. 5.

Discharge current oscillations ((a): HDK-Vlas; (b): HDK-Cont; and (c): HPIC).

Image of FIG. 6.
FIG. 6.

Contour map of the number densities of the heavy species obtained from the HDK-Vlas case ((a): neutral atoms and (b): ions). This corresponds to Fig. 5(a). The units of the number densities are .

Image of FIG. 7.
FIG. 7.

High frequency oscillations of the discharge current ((a): HPIC and (b): HDK-Vlas). The time range is .

Image of FIG. 8.
FIG. 8.

High frequency data of ion number density in the ionization and acceleration regions, corresponding to Fig. 7 ((a): HPIC and (b): HDK-Vlas) The units are in . The instantaneous number densities are sampled every (500 time step).

Image of FIG. 9.
FIG. 9.

Instantaneous VDFs of ions at the channel exit obtained from the HPIC and HDK-Vlas simulations. Zero values are not shown since it is a logarithmic plot.

Image of FIG. 10.
FIG. 10.

Energy distribution function of ions at the channel exit.

Image of FIG. 11.
FIG. 11.

Velocity distribution function of neutrals at the channel exit.


Generic image for table
Table I.

SPT-100 configuration.

Generic image for table
Table II.

Bounded upwind scheme.

Generic image for table
Table III.

Thruster performance.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: One-dimensional hybrid-direct kinetic simulation of the discharge plasma in a Hall thruster