Measurements and CFD simulations of gas holdup and liquid velocity in novel airlift membrane contactor
Bibliographic record
Abstract
Abstract Liquid velocity and gas holdup were measured in a 690L pilot‐scale rectangular airlift contactor, divided into aerated and nonaerated sections by two vertical rectangular polyester textile membranes. Horizontal flow through the porous membranes complicates flow fields to such an extent that conventional models cannot predict thoroughly velocity profile in the contactor. Experimental data obtained from laser doppler velocimetry (LDV) method were compared with numerical finite volume method (FVM), in order to determine the velocity profile in the downcomer zone of the contactor. In formulating the data, a realistic set of boundary conditions was implemented in the numerical method, resulted in satisfactory agreement between theory and experiment. The effects of the distance between the rectangular membranes and air bubble size on the velocity profile were also studied. © 2006 American Institute of Chemical Engineers AIChE J, 2006
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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".