Experiments and simulation of liquid drainage in oscillating packed beds under roll and heave motions
Bibliographic record
Abstract
Abstract Replication in the laboratory of offshore sea/swell movements is an essential component in the study and design of unit operations commissioned for seagoing vessels. Whether these perturbations affect the internal fluid flow structure inside reactors on‐board ships is yet to be investigated. This study focuses on understanding the phenomenon of liquid drainage of a porous medium submitted to hexapod‐controlled column oscillations. Liquid saturation transients, drainage rate, and drainage velocity were monitored using wire‐mesh sensors in porous media, under forced tilting (roll) and non‐tilting (heave) oscillations. A 3D/transient Eulerian two‐fluid model was also solved in the robot moving reference frame to reproduce the accelerated liquid drainage measured in oscillating columns. Such acceleration was highlighted by unveiling the relationship between the roll amplitude, the wall‐region greater permeability, and the uneven crosswise liquid distribution. Finally, the moving‐frame fictitious acceleration forces stemming from column oscillations were found to be negligibly small compared with the gravity both under heave and roll excitations.
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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".