MétaCan
Menu
Back to cohort
Record W2374090249

Micronozzle flow based on simulation of molecule movement

2009· article· en· W2374090249 on OpenAlexaboutno aff
Yang Zhao

Bibliographic record

VenueJournal of Aerospace Power · 2009
Typearticle
Languageen
FieldMathematics
TopicGas Dynamics and Kinetic Theory
Canadian institutionsnot available
Fundersnot available
KeywordsNozzleThrustMechanicsComputer simulationKnudsen numberMonte Carlo methodMaterials scienceSpecific impulseFlow (mathematics)Mechanical engineeringEngineeringPhysicsMathematics
DOInot available

Abstract

fetched live from OpenAlex

In-depth study on micro-nozzle flow field performance contributes to optimization design of micro-propulsion system.Under high Knudsen number conditions,a direct simulation Monte-Carlo method was employed for two-dimensional numerical simulation of the flow field within a Laval micro-nozzle at different inlet temperatures.The results show that along with the increase of fluid temperature at the entrance,micro-nozzle thrust would reduce and specific impulse would increase as the adhesive strength increase.Three-dimensional numerical simulation of micro-nozzle shows that thrust efficiency would decrease with the declining etching depth,and as the etching depth becomes deeper,the influences of three-dimensional boundary wall would reduce.

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)0.000
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 score0.007
Threshold uncertainty score0.014

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0010.000
Insufficient payload (model declined to judge)0.0020.000

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 head0.011
GPT teacher head0.280
Teacher spread0.269 · 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

Explore more

Same venueJournal of Aerospace PowerSame topicGas Dynamics and Kinetic TheoryFrench-language works237,207