Heat Transfer Coefficients in Perforated Fins
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Bibliographic record
Abstract
Three-dimensional steady state and incompressible flow and heat transfer are simulated over a perforated fin to validate the numerical heat transfer coefficients with experimental data. The validated numerical approach is necessary to investigate the complex flow patterns over perforations, which is difficult and costly to capture through experiments. Perforations with square cross sections are distributed equidistantly along the length of the fin. The simulation is performed for a laminar airflow with Reynolds numbers between 992 and 1722. The Navier-Stokes and energy equations are discretized through the finite volume approach, and the pressure and velocity components are coupled by the SIMPLEC algorithm. Excellent agreements (below 6.1%) are obtained by comparing average numerical and experimental Nusselt numbers. Suggestions for future research to address the current gaps in understanding the thermo-fluid mechanism in perforated fins are provided.
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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 | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 it