Prediction of unsteady non-linear combustion instability in solid rocket motors
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
The influence of the surrounding motor structure on the appearance of unsteady non-linear axial combustion instability symptoms in a solid rocket motor internal combustion chamber is investigated. The numerical simulation model consists of three coupled physical components, including the combined propellant and motor casing structure, the motor core fluid flow, and the corresponding propellant combustion. A transient frequency-dependent burning-rate model and an updated erosive burning-rate component model are incorporated in the current overall numerical simulation model. The results of simulating a hot-flow unsteady motor firing indicate that structural vibrations directly affect the burning rate and the axial pressure wave development within the chamber that appears as a primary symptom of combustion instability. Comparison of the predicted results with the experimental test results indicates that a good correlation exists between the two, providing support for the present simulation model.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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 it