Submerged jet impinging asymmetrically onto a rotating surface
Bibliographic record
Abstract
Mean flow and turbulence characteristics of a submerged jet impinging asymmetrically onto a rotating surface are investigated. The jet Reynolds number ranges from 1.3 × 103 to 7.9 × 103, and the rotational Reynolds number ranges from 10 × 103 to 175 × 103. The nozzle to impingement surface distance is fixed at 5d, and the nozzle axis to axis of rotation spacing is R/3 and 2R/3. Jet and rotation dominated flow regimes are identified. Spatial expansion of the jet dominated regime was found to occur when the jet Reynolds number was high, or the rotational Reynolds number was low. This was evident by a decrease in the radius of axisymmetric jet expansion from 3.4d to 2d when increasing the rotational Reynolds number from 10 × 103 to 175 × 103, keeping the jet Reynolds number constant at 1.3 × 103. The jet dominated regime was also shown to grow in axial planes sufficiently far from the rotating impingement surface. This was demonstrated by an increase in the radius of axisymmetric jet expansion from 0.85d to 3.4d in the axial planes of z/d = 0.012 and z/d = 0.125, respectively, with a jet Reynolds number of 1.3 × 103 and a rotational Reynolds number of 10 × 103. Low jet Reynolds numbers combined with high rotational Reynolds numbers were shown to aid in the formation of a mixing zone and jet deflection. When the nozzle axis to axis of rotation distance increases, the jet experiences greater deflection and the jet dominated region reduces in size. Increasing the impingement radius also enhances mixing and turbulence within the mixing zone.
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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 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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".