EFFECTS OF NON-LINEARITY ON SOUND GENERATION AND PROPAGATION IN A NON-UNIFORM FLOW
Bibliographic record
Abstract
Propagation of acoustic waves caused by parallel vortex-cylinder interaction in a non-uniform flow is numerically investigated, using high-order compact scheme. Flow around a non-rotating rigid cylinder is taken as a prototype of real-world flows with strong gradients of mean pressure and velocity. The influence of non-linearity on the directivity and amplitude of wave propagation has been studied for non-zero circulation of Vatistas vortex model 4 . As the vortex strength increases, the contribution to the sound generation made by non-linear terms becomes more important. Several crucial features of the acoustic field obtained by non-linear simulations are shown to be different from those obtained by linear simulations. While linear predictions have suggested a low noise zone around the centerline, the non-linear simulation results reveal that the acoustic pressure is far from zero on the centerline.
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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".