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Record W1992812039 · doi:10.1002/pamm.200610279

Über die exzentrische Zylinderspaltströmung bei engen Spaltweiten

2006· article· de· W1992812039 on OpenAlexaff
Peter Stücke, Mike Schwarz, Nicoleta Scurtu, Christoph Egbers

Bibliographic record

VenuePAMM · 2006
Typearticle
Languagede
FieldEngineering
TopicParticle Dynamics in Fluid Flows
Canadian institutionsSt. Peter's Hospital
Fundersnot available
KeywordsPhysics

Abstract

fetched live from OpenAlex

Abstract Es werden die Strömungsverhältnisse im Ringspalt zweier koaxial angeordneter Zylinder mit den Mitteln der Strömungsvisualisierung untersucht. Dabei wird der Übergangsbereich von laminarer Couette‐Strömung zu Taylor‐Wirbel‐Strömung bei konzentrischer und exzentrischer Anordnung der Zylinder und relativen Spaltweiten von unter 0.1 untersucht. Bei konzentrischer Zylinderanordnung kann die Stabilitätsgrenze der laminaren Couette‐Strömung für Reynolds‐Zahlen von 150 bis 400 bestätigt werden. Bei exzentrischer Anordnung der Zylinder ändern sich die Strömungsverhältnisse grundlegend. Mit zunehmender Exzentrizität verschiebt sich die Stabilitätsgrenze zu höheren Reynolds‐Zahlen. In Abhängigkeit von der Reynolds‐Zahl bilden sich Taylor‐Wirbel bei bestimmten Exzentrizitäten nur im konvergenten Teil des Spaltes. Der Bereich um die engste Spaltweite ist dann frei von Taylor‐Wirbeln. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation 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: Empirical
Teacher disagreement score0.003
Threshold uncertainty score0.009

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0030.000

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 head0.009
GPT teacher head0.210
Teacher spread0.201 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreEmpirical

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".

Quick stats

Citations2
Published2006
Admission routes1
Has abstractyes

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Same venuePAMMSame topicParticle Dynamics in Fluid FlowsFrench-language works237,207