Modeling Transient Conduction in Enclosed Regions Between Isothermal Boundaries of Arbitrary Shape
Bibliographic record
Abstract
Analytical models are developed to predict dimensionless heat flow rate for transient conduction in the doubly connected region formed between an arbitrarily shaped, isothermal inner body and its surrounding isothermal enclosure. This modeling procedure is based on limiting cases and trends identified in the exact solution for the concentric spheres. Asymptotic solutions for the limiting cases of small and large relative domain size, as well as for short and long times, are combined to provide comprehensive models applicable to the full range of the independent parameters. Validation of the models by the spherical enclosure solution and numerical data for the concentric cubes has shown excellent agreement between the model and the data, within less than a 3 % rms difference for most cases. Nomenclature Ai = inner body surface area, m2 a = inner sphere radius, m b = outer sphere radius, m cp = specific heat, J/kgK Fo = Fourier number, αt/Ai k = thermal conductivity, W/mK
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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".