AN EXPERIMENTAL STUDY ON THE GAS-SOLID TWO-PHASE FLOW IN A SQUARE CYCLONE SEPARATOR WITH DOWNWARD GAS EXIT BY 3D-PDA
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Bibliographic record
Abstract
Three dimensional Particle Dynamic Analyzer (3D PDA) was employed to measure the gas solid two phase flow in a lab scale square cyclone separator with downward gas exit under 4 cases of different inlet velocity and particle concentration. The particle used in the test was glass bead of mean diameter 30～40μm.It's found that the center of the flow field deviated from the geometric center of the cyclone. The flow fields showed a feature of Rankine eddy, i.e. strongly swirling region in the central part and pseudo free eddy region of weak swirling intensity near the cyclone wall. Local vortex existed at the corners where the flow changed its direction sharply. When the cyclone wall was heated and the suspension temperature was elevated, it's found that the flow field became more uniform than that under room temperature condition. The local vortex at the corners were weakened and the swirling intensity became poorer which led to a decreased total mean separation efficiency from about 81% to 76.5%. The results of this paper provide a further understand of the separation mechanism and guidance for the optimization of the square cyclone separator structure.
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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 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 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 it