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Record W2374293287

Water-flow simulation and CFD research on supersonic flow phenomenon

2011· article· en· W2374293287 on OpenAlexaboutno aff
Fei He

Bibliographic record

VenueJournal of Experiments in Fluid Mechanics · 2011
Typearticle
Languageen
FieldEngineering
TopicComputational Fluid Dynamics and Aerodynamics
Canadian institutionsnot available
Fundersnot available
KeywordsMechanicsSupercritical flowOpen-channel flowHydraulic jumpShock waveAerodynamicsSupersonic speedNozzleComputational fluid dynamicsInviscid flowFlow (mathematics)Choked flowOblique shockPhysicsWedge (geometry)OpticsThermodynamics
DOInot available

Abstract

fetched live from OpenAlex

It can be deduced from the governing equations of fluid flow that shallow-water wave in the open channel and air disturbance wave follow the same pattern of propagation.Thus complicated aerodynamic phenomenon could be simulated directly by the water flow in an open channel.The experimental results of water flow in the convergent-divergent open channel used in the experiment agree with the numerical simulation results of air flow field well,which validates aerodynamic phenomenon can be simulated in the open channel.The same variation of M and Fr number along the flow direction could be concluded in a Laval nozzle and in the open channel with the same shape and sizes separately.Supercritical water flow passing obstacles with the shape of wedge and cylinder can be taken as the expansion-like wave and shock-like wave in its supersonic air-flow counterpart.By changing the outside water level behind the exit of the open channel,the hydraulic jump waves are produced in the open channel to well simulate shock waves occurred inside Laval nozzle under corresponding condition.

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)0.001
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: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.046
Threshold uncertainty score0.472

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
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 head0.077
GPT teacher head0.323
Teacher spread0.246 · 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

Citations1
Published2011
Admission routes1
Has abstractyes

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