Lagrangian simulation of suspended particles in the neutrally stratified surface boundary layer
Why this work is in the frame
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Bibliographic record
Abstract
The one‐dimensional equation of motion for suspended particles in the neutral atmospheric surface boundary layer is solved for the particle motion assuming that the sequence of vertical fluid velocities at the (moving) particle location can be modeled by a generalized Langevin equation. This inertial particle model is used to produce concentration profiles above a reflecting lower boundary for neutrally buoyant particles with inertia and for heavy particles with gravitational settling. Near the ground, modeled particle number concentration profiles above an infinite plane depart from the standard power law solution predicted by diffusion models. We investigate effective settling velocity and the eddy diffusivity for particles in this turbulent boundary layer flow and find that, near the ground, both are reduced in relation to particle terminal velocity and the assumptions made in boundary layer diffusion models.
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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 | 0.001 | 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 | 0.001 |
| 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