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Record W2335531956 · doi:10.2514/6.2009-1311

A NLFD-Spectral Difference Scheme for Periodic Transonic Inviscid Flows

2009· article· en· W2335531956 on OpenAlexaff
Jean‐Sébastien Cagnone, Siva Nadarajah

Bibliographic record

Venue47th AIAA Aerospace Sciences Meeting including The New Horizons Forum and Aerospace Exposition · 2009
Typearticle
Languageen
FieldEngineering
TopicComputational Fluid Dynamics and Aerodynamics
Canadian institutionsMcGill University
Fundersnot available
KeywordsInviscid flowTransonicScheme (mathematics)PhysicsComputer scienceMechanicsMathematicsMathematical analysisAerodynamics

Abstract

fetched live from OpenAlex

In this paper, the non-linear frequency domain scheme and spectral dierence discretiza-tion are combined to form a solution methodology for the 2D periodic Euler equations. A limiter-based shock-capturing technique is employed within the implicit LU-SGS time marching algorithm to accurately resolve \now discontinuities. The resulting framework leads to an ecient implicit numerical scheme designed for transonic periodic \now prob-lems. First, two steady airfoil cases are tackled to validate the spectral dierence solver. Second, two pitching airfoil are considered to investigate the scheme's potential for un-steady problems. I.

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: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.003
Threshold uncertainty score0.010

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 communication0.0000.000
Open science0.0010.001
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0030.001

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 head0.013
GPT teacher head0.245
Teacher spread0.232 · 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

Citations0
Published2009
Admission routes1
Has abstractyes

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Same venue47th AIAA Aerospace Sciences Meeting including The New Horizons Forum and Aerospace ExpositionSame topicComputational Fluid Dynamics and AerodynamicsFrench-language works237,207