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Record W2366369634

Effect of aeration parameter on inner thrust of underwater two-phases ramjet

2009· article· en· W2366369634 on OpenAlexaboutno aff
Jin Da-qiao

Bibliographic record

VenueZhendong yu chongji · 2009
Typearticle
Languageen
FieldEngineering
TopicUnderwater Vehicles and Communication Systems
Canadian institutionsnot available
Fundersnot available
KeywordsRamjetMechanicsThrustAerationSupersonic speedNozzleAerospace engineeringUnderwaterVolume (thermodynamics)Froude numberFluentEnvironmental scienceFlow (mathematics)Materials scienceCombustorComputational fluid dynamicsEngineeringPhysicsGeologyCombustionThermodynamicsChemistryWaste management
DOInot available

Abstract

fetched live from OpenAlex

The underwater two-phases ramjet is one kind of new style jets which are based on the development of two phases bubbly flow throughout Laval nozzle. The working mechanism of ramjet was studied numerically by using CFD commercial software FLUENT 6.2. The steady flow, non-compressible air and non-exchanging heat were concerned. When the aeration speed is supersonic and keeping the velocity of ship and the aeration angle is steady, the inner thrust of the ramjet increases as the aeration speed increases. The inner thrust fluctuates in a wide range when the aeration speed increases to certain high level. When the pure air is aerated, the temperature of the air almost doesn't have effect on the inner thrust. When the gas aerated is composed of air and vapour, and the volume flux of the gas remains invariable, the increase of gas humidity will cause a drop of the inner thrust of the underwater two-phases ramjet.

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: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.179
Threshold uncertainty score0.545

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 head0.012
GPT teacher head0.256
Teacher spread0.244 · 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 designBench or experimental
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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