Simulation and Design of a Micro-Hall Thruster for Spacecraft
Bibliographic record
Abstract
View Video Presentation: https://doi.org/10.2514/6.2021-3442.vid Miniature satellites can offer significant cost savings as well as perform useful functions from low earth orbit. Propulsion on these miniature satellites can be used for orientation keeping, object avoidance, orbit raising, orbit keeping, and deorbiting. This allows more flexibility for the spacecraft as well as extends its useful lifetime. Hall effect thrusters are an attractive and efficient choice however, down-scaling such a system to fit on micro-satellites has certain challenges which have proven to be non-trivial. This paper will discuss the operation of Hall effect thrusters and emphasize the motivation for a micro-hall thruster simulation using krypton. Useful characteristics of plasma in a thruster via the numerical simulation (PIC) technique used will be discussed with the objective of developing a prototype.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".