FORCED CONVECTION EXPERIMENTS ON SLOTTED TRANSPIRED PLATES
Bibliographic record
Abstract
Experiments were conducted to measure the thermal effectiveness of perforated transpired plates in a grazing wind. The experiments were motivated by the need to model a novel solar collector design. The perforations in the plate took the form of narrow slots that were perpendicular to the wind direction. The measurements were performed in the asymptotic region, where the thermal and hydrodynamics boundary layers assume a periodic behaviour. Four plates made from different materials and having different geometries were tested, using air as the fluid. The range of parameters for the experiments were as follows: wind speed from 1 to 8 m/s, superficial suction velocity from 0.04 to 0.08 m/s, slot spacing from 15 to 25 mm, slot width from 0.18 to 0.25 mm, plate thickness from 0.8 to 1.5 mm, and plate thermal conductivity from 0.2 to 15 W/Km. The results for a given plate were correlated tightly by a single dimensionless flow parameter, γ, a product of a Reynolds number and a velocity ratio (suction to wind velocity) that has arisen from of an integral momentum analysis. Thermal effectiveness results were correlated to dimensionless parameters. Excellent agreement, with an rms error of 1.8%, was obtained.
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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 | 0.001 |
| 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".