Modelling and Simulating Unsteady Six Degrees-of-Freedom Submarine Rising Maneuvers
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
Abstract : DRDC Atlantic is collaborating with ANSYS Canada and the University of New Brunswick to develop an unsteady, six degrees-of-freedom, Reynolds Averaged Navier-Stokes (RANS) submarine maneuvering simulation capability. Initially, this is being used to evaluate emergency rising maneuvers. During these maneuvers, high negative angles of attack can occur which result in a roll instability not previously predicted by quasi-steady modelling. The objective of the RANS simulation is to reproduce the instability and investigate mitigation strategies. Models for weight and buoyancy when blowing, high incidence propulsion, and appendage and propulsion activation are presented and tested. A high incidence, quasi-steady, coefficient based hydrodynamic model used in previous stability analyses is also presented. These models are used for evaluating stability, testing the system models, and investigating different maneuvering scenarios in preparation for carrying out the computationally intensive RANS simulations. These preliminary investigations suggest the initial roll angle prior to blowing ballast, coupled with the roll instability and low pitch angles, plays an important role in the emergence roll angle.
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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 it