Results 31 to 40 of about 9,251 (208)
Numerical simulation optimization of neutral flow dynamics in low-power Hall thruster
Results in Physics, 2023 This paper utilizes a low-power Hall thruster to investigate its flow field’s neutral flow dynamics. Specifically, under a free molecular flow with a high Knudsen number (Kn>10), we employ the flow conductance theory to investigate the interplay between ...
Shixu Lu +5 more
doaj +1 more source
Evidence of Counter-Streaming Ions near the Inner Pole of the HERMeS Hall Thruster [PDF]
NASA is continuing the development of a 12.5-kW Hall thruster system to support a phased exploration concept to expand human presence to cis-lunar space and eventually to Mars.
Chaplin V. H. +23 more
core +2 more sources
Optimization of Cylindrical Hall Thrusters [PDF]
43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2007 The cylindrical Hall thruster features high ionization efficiency, quiet operation, and ion acceleration in a large volume-to-surface ratio channel with performance comparable with the state-of-the-art annular Hall thrusters. These characteristics were demonstrated in low and medium power ranges.
Yevgeny Raitses +3 more
openaire +1 more source
Advanced laboratory for testing plasma thrusters and Hall thruster measurement campaign
Nukleonika, 2016 Plasma engines are used for space propulsion as an alternative to chemical thrusters. Due to the high exhaust velocity of the propellant, they are more efficient for long-distance interplanetary space missions than their conventional counterparts.
Szelecka Agnieszka
doaj +1 more source
Effects of Magnetic Field Gradient on the Performance of a Magnetically Shielded Hall Thruster
Aerospace, 2023 The objective of this study is to investigate the effects of a magnetic field gradient on the performance of a magnetically shielded Hall thruster. The Particle-in-cell with Monte Carlo collision method (PIC-MCC) is used to simulate the discharge process
Qi Liu, Yong Li, Yanlin Hu, Wei Mao
doaj +1 more source
Fluid simulation on effect of background magnetic field on plasma characteristics in a Hall thruster
AIP Advances, 2022 Herein, the effect of the background magnetic field on plasma characteristics in a Hall thruster is numerically investigated using DUT-HTFS [Li et al., AIP Adv. 12, 015117 (2022)], an integrated fluid simulation platform on Hall thruster plasmas.
Nannan Li +3 more
doaj +1 more source
Pulsed hall thruster system [PDF]
, 2004 A pulsed Hall thruster system includes a Hall thruster having an electron source, a magnetic circuit, and a discharge chamber; a power processing unit for firing the Hall thruster to generate a discharge; a propellant storage and delivery system for ...
Gamero-Castano, Manuel +2 more
core +1 more source
NASA's Hall thruster program [PDF]
37th Joint Propulsion Conference and Exhibit, 2001 NASA's Hall thruster program has base research and focused development efforts in support of the Advanced Space Transportation Program, Space-Based Program, and various other programs. The objective of the base research is to gain an improved understanding of the physical processes and engineering constraints of Hall thrusters to enable development of ...
Robert Jnkovsky +7 more
openaire +1 more source
Experimental investigation of dielectric wall material effects on low-power HEMP thruster
AIP Advances, 2020 The high efficiency multi-staged plasma (HEMP) thruster, also known as the cusped field thruster, becomes a candidate microthruster of new generation space observation missions for its low complexity and potential long life over a wide range of thrust ...
Ming Zeng +5 more
doaj +1 more source
Force probes for development and testing of different electric propulsion systems
EPJ Techniques and Instrumentation, 2022 Diagnostics with force probes in plumes of electric propulsion systems for spacecraft (thrusters) are presented. This contribution focuses on showing example measurements with force probes for the most common gridless ion thruster types.
Alexander Spethmann +7 more
doaj +1 more source