Bibliographic record
Abstract
Abstract A detailed experimental and simulation study has been carried out in the present work to understand drop breakup in regions around the edge of the Rushton turbine in agitated vessels. The effect of impeller speed, impeller size, interfacial tension, and the viscosities of the two phases is studied on drop breakup through their effect on d max , the size of the largest drop in the system, and the whole size distribution. The measurements were carried out using Galai particle size analyser and optical microscope. Experimental analysis shows that the d max , maximum stable drop diameter varies with impeller tip velocity to the power −1. The variation of d max with interfacial tension is studied using different surfactants. The effect of viscosity ratio, achieved by changing the dispersed phase viscosity, on d max is captured. For the same d max values obtained from two different dispersed phases show that the wider drop size distribution is observed for higher dispersed phase viscosity. Une étude expérimentale et de simulation détaillée a été réalisée dans ce travail dans le but de comprendre la rupture de gouttes dans les zones près de l'extrémité de la turbine Rushton dans des cuves agitées. L'effet de la vitesse de l'impulseur, de la taille de l'impulseur, de la tension interfaciale et des viscosités des deux phases est étudié sur la rupture de gouttes par leur effet sur le diamètre de goutte stable maximal, la taille de la plus grosse goutte du système et la distribution pour toute la taille. Les mesures ont été effectuées à l'aide d'un analyseur granulométrique Galai et d'un microscope optique. Une analyse expérimentale démontre que le diamètre de goutte stable maximal varie avec une vélocité du bout de l'impulseur à la puissance ‐1. La variation du diamètre de goutte stable maximal avec la tension interfaciale est étudiée à l'aide de différents surfactifs. L'effet de viscosité relative, atteint en changeant la viscosité de phase dispersée, sur le diamètre de goutte stable maximal est capté. Les mêmes valeurs de diamètre de goutte stable maximal obtenues de deux phases dispersées différentes indiquent que la distribution des plus grosses gouttes est observée pour la viscosité de phase dispersée supérieure. Can. J. Chem. Eng. © 2010 Canadian Society for Chemical Engineering
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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 | 0.001 |
| 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".