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Record W2373853943

Numerical simulation and discussion on jet and combustion outside the cylinder of the diesel engine under HCCI

2008· article· en· W2373853943 on OpenAlexaboutno aff
Xu Li

Bibliographic record

VenueJournal of Dalian Maritime University · 2008
Typearticle
Languageen
FieldChemical Engineering
TopicAdvanced Combustion Engine Technologies
Canadian institutionsnot available
Fundersnot available
KeywordsHomogeneous charge compression ignitionCombustionMechanicsJet (fluid)CylinderDiesel fuelNozzleSupersonic speedIgnition systemMaterials scienceEvaporationFuel injectionMixing (physics)Diesel engineMechanical engineeringAutomotive engineeringCombustion chamberThermodynamicsEngineeringAerospace engineeringChemistryPhysics
DOInot available

Abstract

fetched live from OpenAlex

Laval tube was aided to change injection parameters in the inlet design,in order to promote fuel and air mixing and achieve HCCI combustion conditions.The numerical simulation test is done to the jet and combustion process of the diesel engineer by Star-CD.The results show that the droplets of supersonic jetting fuel flows in the laval tube(as the former) is more uniform and less than the droplets in the direct tube(as the latter);the fuel evaporation rate of the latter is faster than that of the former;the former gets the lower temperature in the compression-ignition process because the concentration of the cylinder fuel is excessive uniform.The analyses show that the method can increase the atomizing effect of the fuel obviously,but it can not cause the dramatic changes to the combustion temperature.

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: Empirical
Teacher disagreement score0.015
Threshold uncertainty score0.029

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0000.001
Science and technology studies0.0010.001
Scholarly communication0.0010.001
Open science0.0010.000
Research integrity0.0010.001
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 head0.016
GPT teacher head0.221
Teacher spread0.205 · 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
Published2008
Admission routes1
Has abstractyes

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