Influence of Initial Propellant Temperature on Solid Rocket Internal Ballistics
Bibliographic record
Abstract
The influence of initial propellant temperature on solid propellant rocket motor performance is examined in the present study, with the focus primarily on predicted steady and nonsteady burning rate behavior. The present evaluation includes an examination of quasi-steady burning of a conventional composite propellant under pressure, core flow (erosive burning), and normal acceleration (say, due to motor spinning). The most direct and well-known influence of initial propellant temperature is on the pressure-dependent burning rate. The pressure-dependent burning rate, as the base burning rate, in turn influences the degree of augmentation seen under core flow and normal acceleration; in general, the lower the base rate, the higher the augmentation. The explicit presence of initial propellant temperature in various model equations for the flow- and acceleration-dependent burning components, and the corresponding effect of the initial temperature on the propellant’s burning surface temperature, can produce an...
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.002 |
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; both teacher heads agree on what is shown here.
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".