Compressible Subsonic Particle-Laden Flow over a Square Cylinder
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
Results are presented from simulations of transient vortex shedding in a particle-laden compressible flow over a square cylinder. The carrier phase is computed by solving the Navier-Stokes equations directly with a Chebyshev spectral element method. The dispersed phase is solved by a Lagrangian method, tracking the particles by way of the Basset-Boussinesq-Oseen equation. The coupling between the two phases is one way, that is, the volume fraction of the particles is assumed to be small so the effect of particles on the carrier phase is neglected. The results show that the main effect of the carrier-phase compressibility is the compression of the fluid in front of the cylinder and its expansion behind the cylinder. The particle phase shows the well-known focusing effect for high particle to fluid density ratios. For a lower density ratio, forces such as the pressure drag, virtual mass, Basset history, and Saffman lift tend to increase the dispersion. Compressibility effects are noticeable at low density ratios. In such situations, a lower deposition of the particles at the front of the square and a lower capture of the particles behind the square is observed.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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