Single Augmented Swirling and Round Jet for Improvement of Impingement Heat Transfer from a Flat Plate
Bibliographic record
Abstract
We propose a geometrical mechanism that generates an augmented swirling and round jet for impingement heat transfer from a heated flat plate which is predicted using 3-D RANS numerical simulations. Important parameters such as jet-plate distance (H/D), Reynolds number (Re) Also, Numerical simulations for the conventional round jets and swirling jets [3] generated by the geometrical vane-swirler (at three different vane angles = 45 0 , 60 0 , and 30 0 ) each of jet diameter D = 30 mm is performed for the Reynolds number (Re = 6000 -15,000) and at a jet-plate distance (H = 1.5D -4D). A comparative study of their impingement heat transfer characteristics is studied with the proposed augmented jet. It is inferred that at a smaller jet-plate distance H =1.5D or H/D =1.5, the proposed augmented jet and vane swirler jets showed an improved heat transfer from the impingement surface (heated flat plate). The conventional round jets showed maximum heat transfer at H = 4D. From the numerical analysis, for the proposed augmented jet, at an optimized jet-plate distance H=1.5D and split ratio (SR-4), the average Nusselt number (Nu avg) is enhanced by 88% than the conventional round jet and 101% than the vane-swirler jet counterpart. Similarly, an enhancement in the stagnation Nusselt number (Nu stg) of 189% than the round jet is predicted for the proposed augmented jet at SR-4.
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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".