THE LAGRANGIAN-EULERIAN METHOD:SOLUTIONS FOR FLOW AROUND A CYLINDER IN A PLANAR CHANNEL
Bibliographic record
Abstract
The Lagrangian-Eulerian algorithm was used for simulating flow past a confined cylinder with 1:2 diameter/wall ratio. The one-mode Phan-Thien and Tanner(PTT) constitutive model was used in the present calculation. Profiles of both velocity and stresses are obtained at different sections of the steady flow, and compared with laser Doppler velocimetry and flow-induced birefringence data given by Baaijens et al. for a polyisobutylene/tetradecane(PIB/C14) contraction flow at Deborah number De = 0.93. Overall, the simulation has reproduced the experimental results with good accuracy, the agreement between the numerical predictions and the experimental results is fairly well. In addition, the dimensionless drag on the cylinder is reported to be a monotonically decreasing function of the Deborah number,and agrees well with the numerical results of Dou and Phan-Thien.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".