EFFECT OF A TIME-DEPENDENT CONSTRICTION ON PULSATILE FLOW OF INCOMPRESSIBLE FLUID IN A TUBE
Bibliographic record
Abstract
The dynamics of the pulsatile flow field in a tube that has a constriction with a time dependent size is studied. The size and shape of the constriction change in a periodic manner which is non-linearly related to the periodic changes in the flow. A numerical method is used in order to study the flow field in the vicinity of a time dependent constriction on pulsatile flow in a tube. This analysis is based on a simplified model in which fluid is assumed to be Newtonian, while the flow is laminar and has a simple periodic pulsation. It is further assumed that the constriction is axially symmetric with a shape that changes periodically, in a given way. The presence of the time dependent constriction on the pulsatile flow causes various instabilities to occur. These instabilities and their effects are investigated for a Reynolds number of 200 over a range of dimensionless frequency of 5 ≤ α ≤ 10 where α is the reduced frequency parameter.
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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".