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Record W1967746588 · doi:10.2514/6.2011-789

Determination of Fuel Droplet Evaporation Based on Multiple Thermocouple Sizes

2011· article· en· W1967746588 on OpenAlex
Patrice Seers, William C. Thomas, Simon Bruyère-Bergeron

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

Venue49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition · 2011
Typearticle
Languageen
FieldEngineering
TopicCombustion and flame dynamics
Canadian institutionsUniversité du Québec
Fundersnot available
KeywordsThermocoupleEvaporationMaterials scienceNuclear engineeringEnvironmental scienceThermodynamicsEngineeringComposite materialPhysics

Abstract

fetched live from OpenAlex

Fuel droplet evaporation is an important process in fuel spray such as in internal combustion engine and gas turbine. Experimental data of fuel droplet evaporation are important to the validation of heat and mass transfer models which in turn are used in fuel spray modeling. This paper presents experimental data of evaporating butanol and nheptane droplets under warm forced convection. The droplets were suspended by thermocouple fibres to also obtain fuel droplets temperature. Different thermocouple diameters were used to determine the mean evaporation rate without thermocouple fibres which is extrapolated by plotting the mean evaporation rate of the droplet as a function of the thermocouple diameter squared. By using thermocouple it is also possible to obtain the fuel droplet temperature history which shows, for butanol, that most of the evaporation process takes place at a constant droplet temperature. On the other hand, for a volatile substance such as n-heptane, the droplet temperature is characterized by a continuously transient change of droplet temperature. Finally, the results of a model based on the energy balance of the fuel droplet shows the repartition of the relative importance of convection, conduction and radiation for different thermocouple fibre diameters.

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.

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)0.001
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: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.763
Threshold uncertainty score0.855

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0010.000
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 head0.024
GPT teacher head0.236
Teacher spread0.211 · 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