Triple

T19319227
Position Surface form Disambiguated ID Type / Status
Subject von Kármán constant E483174 entity
Predicate relatedTo P37 FINISHED
Object Prandtl mixing length theory
Prandtl mixing length theory is a foundational turbulence model in fluid mechanics that describes how momentum is transported in turbulent flows using an analogy to molecular diffusion, introducing a characteristic mixing length scale.
E1371354 NE FINISHED

How this triple was built (4 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Prandtl mixing length theory | Statement: [von Kármán constant, relatedTo, Prandtl mixing length theory]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Prandtl mixing length theory
Context triple: [von Kármán constant, relatedTo, Prandtl mixing length theory]
  • A. Prandtl–Blasius boundary layer solution
    The Prandtl–Blasius boundary layer solution is a classical analytical solution in fluid dynamics that describes the velocity profile of laminar flow over a flat plate near its surface.
  • B. Prandtl boundary layer
    The Prandtl boundary layer is a fundamental fluid mechanics concept describing the thin region near a solid surface where viscous effects dominate and velocity changes rapidly from zero at the wall to the free-stream value.
  • C. The Theory of Homogeneous Turbulence
    The Theory of Homogeneous Turbulence is a classic monograph in fluid dynamics that provides a rigorous mathematical treatment of statistically uniform turbulent flows.
  • D. On the theories of the internal friction of fluids in motion
    "On the theories of the internal friction of fluids in motion" is a foundational scientific paper by George Gabriel Stokes that established key principles of fluid dynamics and viscosity, leading to what is now known as the Navier–Stokes equations.
  • E. Prandtl–Batchelor theorem
    The Prandtl–Batchelor theorem is a result in fluid dynamics that characterizes the uniform vorticity distribution in regions of closed streamlines at high Reynolds numbers.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Prandtl mixing length theory
Triple: [von Kármán constant, relatedTo, Prandtl mixing length theory]
Generated description
Prandtl mixing length theory is a foundational turbulence model in fluid mechanics that describes how momentum is transported in turbulent flows using an analogy to molecular diffusion, introducing a characteristic mixing length scale.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Prandtl mixing length theory
Target entity description: Prandtl mixing length theory is a foundational turbulence model in fluid mechanics that describes how momentum is transported in turbulent flows using an analogy to molecular diffusion, introducing a characteristic mixing length scale.
  • A. Prandtl–Blasius boundary layer solution
    The Prandtl–Blasius boundary layer solution is a classical analytical solution in fluid dynamics that describes the velocity profile of laminar flow over a flat plate near its surface.
  • B. Prandtl boundary layer
    The Prandtl boundary layer is a fundamental fluid mechanics concept describing the thin region near a solid surface where viscous effects dominate and velocity changes rapidly from zero at the wall to the free-stream value.
  • C. The Theory of Homogeneous Turbulence
    The Theory of Homogeneous Turbulence is a classic monograph in fluid dynamics that provides a rigorous mathematical treatment of statistically uniform turbulent flows.
  • D. On the theories of the internal friction of fluids in motion
    "On the theories of the internal friction of fluids in motion" is a foundational scientific paper by George Gabriel Stokes that established key principles of fluid dynamics and viscosity, leading to what is now known as the Navier–Stokes equations.
  • E. Prandtl–Batchelor theorem
    The Prandtl–Batchelor theorem is a result in fluid dynamics that characterizes the uniform vorticity distribution in regions of closed streamlines at high Reynolds numbers.
  • F. None of above. chosen

Provenance (5 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69d8e8d13e3c81909d91d1d5ec37c095 completed April 10, 2026, 12:10 p.m.
NER Named-entity recognition batch_69e60d868dd48190b1439a5f4ff58c48 completed April 20, 2026, 11:27 a.m.
NED1 Entity disambiguation (via context triple) batch_6a071bd8090881908fed92a3b6b02f6d completed May 15, 2026, 1:12 p.m.
NEDg Description generation batch_6a071f9990fc819084b0ea1fdfe0ac51 completed May 15, 2026, 1:28 p.m.
NED2 Entity disambiguation (via description) batch_6a07200bae248190bc95a13445d5a15e completed May 15, 2026, 1:30 p.m.
Created at: April 10, 2026, 1:32 p.m.