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Record W2110244476 · doi:10.1002/aic.10380

New description of fluidization regimes

2005· article· en· W2110244476 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueAIChE Journal · 2005
Typearticle
Languageen
FieldEngineering
TopicFluid Dynamics and Mixing
Canadian institutionsPolytechnique Montréal
Fundersnot available
KeywordsFluidizationTurbulenceBubbleMechanicsPressure dropThermodynamicsPhysicsFluidized bed

Abstract

fetched live from OpenAlex

Abstract Two pressure probes and an intrusive bioptical probe provide experimental data in the bubbling and turbulent regimes to improve our understanding of the transition from the bubbling regime to the fast fluidization regime. Assessment of pressure, voidage, and bubbling properties allows for a new description of turbulent fluidization hydrodynamics. Appreciable changes in the hydrodynamics appear well below the transition criterion U c , determined based on pressure fluctuations: bubbles are fast bubbles below U c , in bubble–emulsion equilibrium state at U c , and then become slow bubbles for higher fluidizing velocity; the maximum of the total fluidizing gas fraction in the bubble phase is reached below U c and never exceeds 75–80%. The fluidizing velocity at which major modifications in hydrodynamics are observed is lower than U c . This critical velocity is detected with pressure drop assessment or frequency analysis of voidage fluctuations. Moreover, it can be theoretically calculated from the two‐phase modeling correlations supplemented with a new criterion deduced from our experiments. © 2005 American Institute of Chemical Engineers AIChE J, 2005

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.616
Threshold uncertainty score0.173

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.008
GPT teacher head0.191
Teacher spread0.183 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it