The Rotating Cylinder Electrode for Examining Velocity-Sensitive Corrosion—A Review
Bibliographic record
Abstract
Of the laboratory devices available for examining the effects of single-phase fluid flow on corrosion, the rotating cylinder electrode is probably one of the simplest devices to construct and operate under defined hydrodynamics in the turbulent flow regime. This review examines several areas important to the use of this device for examining velocity-sensitive corrosion in single-phase fluids: —the numerous correlations that have been developed to calculate the Sherwood number (mass-transfer coefficient) from the Reynolds and Schmidt numbers for a hydraulically smooth cylinder surface—the effect that surface roughness caused by corrosion and deposits might have on the correlations—a methodology and its limitations for estimating the conditions in the rotating cylinder electrode that could best indicate if mass transfer influences corrosion in several other geometries—a survey of a variety of corrosion-related studies using the rotating cylinder electrode to provide an overview of the large number of applications of this technology and a source for further reading Although this device has been applied successfully, users have sometimes overlooked its limitations, and some of its characteristics still need further attention.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.003 | 0.001 |
| Bibliometrics | 0.006 | 0.005 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.002 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 0.004 |
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 source (direct Gemma or distilled Codex), 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".