Experiments and reduced order modeling of symmetry breaking in Rayleigh-Taylor mixing
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Bibliographic record
Abstract
We report the observation of asymmetrical fingering instabilities unfolding across an upward-moving dissolution interface while downward fingers also evolve. We tackled complexities characterized by large viscosity ratios (M) and Rayleigh (Ra) numbers - phenomena often challenging to replicate experimentally and simulate numerically. We present our Rayleigh-Taylor mixing experiments conducted at a substantial viscosity ratio (M$\ensuremath{\approx}5\ifmmode\times\else\texttimes\fi{}{10}^{5}$) and high Rayleigh numbers (Ra~${10}^{5}\ensuremath{-}3\ifmmode\times\else\texttimes\fi{}{10}^{6}$). Our experiments have confirmed the emergence of asymmetric growth in fingering instabilities along an upward-moving interface, accompanied by significant downward finger evolution.
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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 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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