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Record W2990282219 · doi:10.18280/ejee.210507

Wind Turbine Performance under Fluctuating Pressure Gradient of Laminar and Turbulent Air Flows

2019· article· en· W2990282219 on OpenAlexvenueno aff
Alaa Al-Hadidi, H. M. Duwairi

Bibliographic record

VenueEuropean Journal of Electrical Engineering · 2019
Typearticle
Languageen
FieldEngineering
TopicWind Energy Research and Development
Canadian institutionsnot available
Fundersnot available
KeywordsLaminar flowTurbulenceMechanicsPressure gradientEnvironmental scienceTurbineMeteorologyMarine engineeringGeologyAtmospheric sciencesAerospace engineeringPhysicsEngineering

Abstract

fetched live from OpenAlex

This paper puts forward a novel model to evaluate the fluid velocity, power and efficiency of a wind turbine under the fluctuating pressure gradient of laminar and turbulent air flows. The operation parameters of a wind turbine were calculated based on the conservation of momentum, under different velocity profiles, fluctuating amplitudes and wave lengths, revealing the effects of fluctuating air pressure gradient on transient power output of the wind turbine. The effectiveness of the proposed model was verified through evaluation of output power, in comparison with a popular statistical tool. The results show that, whether the flow is laminar or turbulent, the pressure gradient has a positive impact on the output power; the enhancement effect is positively correlated with the fluctuation amplitude, and prominent within the early cycles of fluctuations; for turbulent flow, the more intense the flow, the better the output power.

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 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: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.061
Threshold uncertainty score0.526

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 head0.005
GPT teacher head0.170
Teacher spread0.165 · 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 teacher head, 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
Published2019
Admission routes1
Has abstractyes

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