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Record W2908133521 · doi:10.1063/1.5054581

Transport phenomena in bispherical coordinates

2019· article· en· W2908133521 on OpenAlex
P. H. Gilbert, A. Jeffrey Giacomin

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.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenuePhysics of Fluids · 2019
Typearticle
Languageen
FieldPhysics and Astronomy
TopicScientific Research and Discoveries
Canadian institutionsQueen's University
FundersNatural Sciences and Engineering Research Council of CanadaCanada Research Chairs
KeywordsPhysicsBipolar coordinatesCartesian coordinate systemOrthogonal coordinatesCoordinate systemCylindrical coordinate systemSpherical coordinate systemCurvilinear coordinatesClassical mechanicsLagrangian and Eulerian specification of the flow fieldGeneralized coordinatesEllipsoidal coordinatesTransport phenomenaLog-polar coordinatesWork (physics)Parabolic coordinatesElliptic coordinate systemMechanicsGeometryTheoretical physicsLagrangianMathematics

Abstract

fetched live from OpenAlex

The practice of transport phenomena has traditionally been confined to Cartesian, cylindrical, spherical, and bipolar cylindrical. For just the equations of continuity and motion, Dijksman added toroidal coordinates. Our recent work expanded the geometries available for solving transport problems to include eccentric cylindrical. However, this short list of available coordinate systems cannot describe many geometries encountered in transport phenomena. Here, we address this restriction on available geometries for transport phenomena by adding bispherical coordinates to the growing list of coordinate systems for which the equations of change have been developed. Bispherical coordinates allow us to solve transport problems between eccentric spheres or horns, which spherical coordinates cannot handle. We thus develop the equations of change for this coordinate system and provide three worked examples showing how to get new exact solutions to momentum, heat, and mass transfer problems.

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)0.000
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: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.532
Threshold uncertainty score0.880

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)0.0010.000

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 head0.258
Teacher spread0.247 · 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