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Record W2327981509 · doi:10.2514/6.2001-2850

Mean aerodynamic forces acting on a pair of circular cylinders in cross-flow

2001· article· en· W2327981509 on OpenAlexafffund
David S. Sumner, Marc Richards, J. L. Heseltine

Bibliographic record

Venue15th AIAA Computational Fluid Dynamics Conference · 2001
Typearticle
Languageen
FieldEngineering
TopicFluid Dynamics and Vibration Analysis
Canadian institutionsUniversity of Saskatchewan
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsAerodynamicsAerodynamic forceFlow (mathematics)MechanicsPhysicsPotential flowAerospace engineeringStructural engineeringEngineering

Abstract

fetched live from OpenAlex

Two circular cylinders of equal diameter in a staggered configuration, with a centre-to-centre pitch ratio of PID = 2.0, were tested in the subcritical Reynolds number regime. The incidence angle of the cylinder configuration was varied from a = 0° to 90° and the aerodynamic forces were measured on both the upstream and downstream cylinders. The forces acting upon the upstream cylinder did not show significant variation with the incidence angle despite the marked changes in the vortex shedding behaviour associated with this cylinder. The aerodynamic forces on the downstream cylinder were sensitive to the tendency towards shear layer reattachment at small incidence angles. The inner lift peak for the downstream cylinder, at a = 9°, was attributed to the loss of shear layer reattachment observed at lower incidence angles, while the minimum drag force experienced by the downstream cylinder occurred under shear layer reattachment conditions. Within the range of Reynolds number examined, no apparent Reynolds number effects were noticed.

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)0.001
metaresearch head score (Gemma)0.002
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 score0.002
Threshold uncertainty score0.004

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.002
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.000
Science and technology studies0.0010.001
Scholarly communication0.0010.000
Open science0.0000.001
Research integrity0.0010.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.014
GPT teacher head0.247
Teacher spread0.233 · 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
Published2001
Admission routes2
Has abstractyes

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