Results 171 to 180 of about 9,251 (208)

Performance calculation of Hall thrusters

Acta Astronautica, 1996
Abstract Plasma flows in a Hall thruster are numerically analyzed by using a 2-D calculation code, and the thruster performance is estimated for several thruster configurations. The model presented herein is mainly comprised of an electron diffusion equation, an ion kinetic equation, and an energy conservation equation, which enables one to compute ...
Kimiya Komurasaki, Yoshihiro Arakawa
openaire   +1 more source

Ion Current in Hall Thrusters

IEEE Transactions on Plasma Science, 2008
To match the observed thrust and discharge current in Hall thrusters, computer simulations have typically assumed anomalous electron transport mechanisms, such as Bohm diffusion, to enhance electron mobility across magnetic field lines. Without enhanced electron transport, the simulations predict a much lower discharge current than observed, and too ...
Ira Katz, Richard R. Hofer, Dan M. Goebel   +2 more
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Anode sheath in Hall thrusters

Applied Physics Letters, 2003
A set of hydrodynamic equations is used to describe quasineutral plasma in ionization and acceleration regions of a Hall thruster. The electron distribution function and Poisson equation are invoked for description of a near-anode region. Numerical solutions suggest that steady-state operation of a Hall thruster can be achieved at different anode ...
L. Dorf, V. Semenov, Y. Raitses
openaire   +1 more source

Plasma oscillations in Hall thrusters

Physics of Plasmas, 2001
The nature of oscillations in the 1 kHz–60 MHz frequency range that have been observed during operation of Hall thrusters is quantitatively discussed. Contours of various plasma parameters measured inside the accelerating channel of a typical Hall thruster are used to evaluate the various stability criteria and dispersion relations of oscillations that
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Improved Hall type thruster

AIP Conference Proceedings, 1995
An improved design of the Hall type stationary plasma thruster has been tested in 1994. The test results are presented. The test measures performance, EMI and beam divergence of two models of thrusters from the Russian Keldysh Scientific‐Research Institute of Thermal Processes.
Joseph R. Wetch, null See-pok Wong, Edward J. Britt, Kevin J. McCracken, Raymond Lin, Valeri Petrosov, Anatoli Koroteev   +6 more
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Physics of the Hall thruster

33rd Joint Propulsion Conference and Exhibit, 1997
U. Shumlak, T. Jarboe, R. Sprenger, U. Shumlak, T. Jarboe, R. Sprenger   +5 more
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Anodic plasma in Hall thrusters

Journal of Applied Physics, 2008
In this paper plasma dynamics and ionization of propellant gas are modeled within the anode holes used for gas injection of a Hall thruster. Under conditions of anode coating with dielectric material, the discharge current should close within these holes, which results in ionization and formation of plasma jets emanating from the openings.
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Channel length and thruster performance of Hall thrusters

32nd Joint Propulsion Conference and Exhibit, 1996
Kimiya Komurasaki, Kenji Mikami, Daisuke Kusamoto   +2 more
openaire   +1 more source

Characterization of a high-power Hall thruster operation in direct-drive

Acta Astronautica, 2021
M Reza, F Faraji, T Andreussi
exaly  

Optical oscillations in a Hall thruster

34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 1998
Kimiya Komurasaki, Yasuyuki Sakurai, Daisuke Kusamoto   +2 more
openaire   +1 more source