{ "model": { "rank": 3614, "code": "thing-q8424", "model_id": "vr.tr.aerodynamics", "name": "aerodynamics", "purpose": "Let an agent explain aerodynamics, relay principles, regimes, testing methods and applications from engineering and physics sources, describe the named phenomena and subfields, and distinguish aerodynamics from hydrodynamics, aeronautics as a broader field, gas kinetics and meteorology.", "family": "Thing Registry", "category": "Information and virtual systems", "status": "research-draft", "kind": "thing", "plane": "INF", "domain": "INF.KNW", "industry": "", "version": "", "url": "/models/thing/q8424/", "tier": 2, "score": 83, "payload": { "layer": "wikidata", "aliases": [ "gas kinetics", "porpoising", "Heat Barrier", "supersonic aerodynamics", "industrial aerodynamics", "automotive aerodynamics", "wind turbine aerodynamics", "nose cone design" ], "aliasCount": 8, "merged": 8, "knownIn": 83, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q8424", "url": "https://www.wikidata.org/wiki/Q8424", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-13T20:16:40Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 4, "engine": "claude" }, "metaModel": { "id": "THING-Q8424", "registryId": "vr.tr.aerodynamics", "name": "aerodynamics", "version": "0.2.0-wave.4", "entryKind": "thing", "family": "Thing Registry", "domain": [ "INF.KNW" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q8424/", "model": { "registry_id": "vr.tr.aerodynamics", "name": "aerodynamics", "purpose": "Let an agent explain aerodynamics, relay principles, regimes, testing methods and applications from engineering and physics sources, describe the named phenomena and subfields, and distinguish aerodynamics from hydrodynamics, aeronautics as a broader field, gas kinetics and meteorology.", "definition": "The branch of fluid dynamics that studies the motion of air and other gases and the forces on bodies moving through them, such as lift and drag, across subsonic, transonic, supersonic and hypersonic regimes, applied in aircraft and rocket design, automotive aerodynamics for cars and racing, industrial and wind engineering for buildings and structures, and sports; phenomena the registry aliases name include porpoising, an oscillation seen in aircraft, seaplanes and ground-effect racing cars, and the heat or thermal barrier from aerodynamic heating at high speeds, while gas kinetics is the broader kinetic theory of gases.", "what_it_is_for": "Understanding and designing for air flow.", "affordances": [ "explain principles", "relay regimes and testing", "describe named phenomena and subfields", "distinguish related fields" ], "distinguishing_features": [ "Lift and drag", "Compressibility regimes", "Wind tunnels and CFD", "Broad applications" ], "appearance": "Not a visible object; visualised with smoke, tufts and CFD images.", "visual_identification": [ "Study of air flow and forces on bodies", "Gas kinetics, porpoising, heat barrier, supersonic aerodynamics, industrial aerodynamics, automotive aerodynamics", "Hydrodynamics studies liquids; aeronautics covers all of flight; kinetic theory treats molecules; meteorology studies the atmosphere" ], "physical_properties": [ { "quantity": "lift equation", "typical_range": "L = 1/2 rho v2 S CL", "unit": "formula", "note": "" }, { "quantity": "speed of sound at sea level", "typical_range": "about 343", "unit": "m/s", "note": "20 C" }, { "quantity": "Wright brothers wind tunnel", "typical_range": "1901", "unit": "year", "note": "" } ], "families_and_kinds": [ "subsonic aerodynamics", "transonic and supersonic aerodynamics", "hypersonic aerodynamics and aerothermodynamics", "automotive aerodynamics", "industrial and wind engineering aerodynamics" ], "related_models": [ { "relation": "is a kind of", "target": "fluid dynamics", "why": "in registry terms" }, { "relation": "is applied in", "target": "aeronautics", "why": "" }, { "relation": "uses", "target": "wind tunnel", "why": "" }, { "relation": "is contrasted with", "target": "kinetic theory of gases", "why": "misfiled alias gas kinetics" } ], "identifiers": [], "standards_and_regulation": [ "Aircraft certification standards such as EASA CS-25 and FAA Part 25", "Wind loading codes such as Eurocode 1", "Motorsport technical regulations" ], "failure_modes_and_hazards": [ "Oversimplified lift explanations", "Flutter and porpoising instabilities", "Aerodynamic heating failures" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "What aerodynamics is.", "rationale": "Science.", "layers": [ { "id": "definition", "name": "Definition", "description": "Definition.", "findings": [ { "id": "definition-finding", "name": "Definition", "description": "Definition.", "questions": [ { "text": "What is aerodynamics, and how does it differ from hydrodynamics, aeronautics, gas kinetics and meteorology?", "kind": "definition" }, { "text": "Is the question about aircraft, cars, buildings, sport or physics?", "kind": "boundary" } ] } ] }, { "id": "named", "name": "Named", "description": "Named phenomena and subfields.", "findings": [ { "id": "named-finding", "name": "Named", "description": "Named.", "questions": [ { "text": "What are porpoising, the heat barrier, supersonic, industrial and automotive aerodynamics, and gas kinetics?", "kind": "definition" }, { "text": "Which entry fits the specific topic?", "kind": "action" } ] } ] } ] }, { "id": "physics", "name": "Physics", "description": "Principles.", "rationale": "Science.", "layers": [ { "id": "lift", "name": "Lift", "description": "Lift and drag.", "findings": [ { "id": "lift-finding", "name": "Lift", "description": "Lift.", "questions": [ { "text": "How do wings generate lift, and why are simple explanations often misleading?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "regimes", "name": "Regimes", "description": "Speed regimes.", "findings": [ { "id": "regimes-finding", "name": "Regimes", "description": "Regimes.", "questions": [ { "text": "How do shock waves and heating change flow at high speeds?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] } ] }, { "id": "engineering", "name": "Engineering", "description": "Engineering.", "rationale": "Regulation.", "layers": [ { "id": "testing", "name": "Testing", "description": "Wind tunnels and CFD.", "findings": [ { "id": "testing-finding", "name": "Testing", "description": "Testing.", "questions": [ { "text": "How are wind tunnels and computational fluid dynamics used?", "kind": "provenance" }, { "text": "Which entry fits computational fluid dynamics?", "kind": "action" } ] } ] }, { "id": "vehicles", "name": "Vehicles", "description": "Cars and racing.", "findings": [ { "id": "vehicles-finding", "name": "Vehicles", "description": "Vehicles.", "questions": [ { "text": "How does aerodynamics affect car efficiency and racing performance, including porpoising?", "kind": "provenance" }, { "text": "Which entry fits ground effect (cars)?", "kind": "action" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "History and structures.", "rationale": "Context.", "layers": [ { "id": "history", "name": "History", "description": "History.", "findings": [ { "id": "history-finding", "name": "History", "description": "History.", "questions": [ { "text": "How did Cayley, Lilienthal and the Wright brothers advance aerodynamics?", "kind": "provenance" }, { "text": "Which entry fits Otto Lilienthal?", "kind": "action" } ] } ] }, { "id": "structures", "name": "Structures", "description": "Wind engineering.", "findings": [ { "id": "structures-finding", "name": "Structures", "description": "Structures.", "questions": [ { "text": "What did the Tacoma Narrows Bridge collapse teach about aeroelasticity?", "kind": "provenance" }, { "text": "Which entry fits Tacoma Narrows Bridge (1940)?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should porpoising and thermal barrier be separate entries?", "How should engineering sources be linked?", "Should gas kinetics be moved to kinetic theory?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "discipline or field of knowledge", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a aerodynamics, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain aerodynamics, relay principles, regimes, testing methods and applications from engineering and physics sources, describe the named phenomena and subfields, and distinguish aerodynamics from hydrodynamics, aeronautics as a broader field, gas kinetics and meteorology.", "characteristics": { "substance": "information", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "read and interpreted" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: gas kinetics, porpoising, Heat Barrier, supersonic aerodynamics, industrial aerodynamics, automotive aerodynamics, wind turbine aerodynamics, nose cone design.", "8 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 83 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a aerodynamics, and on what evidence are they told apart?" ], "whatItIsMadeOf": "content that has to be carried by something else", "physicalCharacter": [ "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "read it and act on what it says" ], "howItIsRecognised": [], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "gas kinetics", "porpoising", "Heat Barrier", "supersonic aerodynamics", "industrial aerodynamics", "automotive aerodynamics", "wind turbine aerodynamics", "nose cone design" ] } ], "standing": "Described in 83 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 8 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one aerodynamics from another, and a aerodynamics from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a aerodynamics, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a aerodynamics, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a aerodynamics is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a aerodynamics, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a aerodynamics, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a aerodynamics is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a aerodynamics sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a aerodynamics, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a aerodynamics, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a aerodynamics is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a aerodynamics from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a aerodynamics, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a aerodynamics, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a aerodynamics is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a aerodynamics passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a aerodynamics between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a aerodynamics, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a aerodynamics, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a aerodynamics is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a aerodynamics, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a aerodynamics is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a aerodynamics, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a aerodynamics, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a aerodynamics is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "content-and-access", "name": "Content, encoding and access", "description": "What a aerodynamics says, how it is encoded and who may read it.", "rationale": "An informational thing carries content that can be copied, versioned and withheld, none of which its physical carrier explains.", "layers": [ { "id": "content-and-encoding", "name": "Content and encoding", "description": "The content itself, its format and its language.", "findings": [ { "id": "content-and-format", "name": "Content, format and language", "description": "What a aerodynamics contains and in what form it is held.", "questions": [ { "id": "content-and-format-q01", "text": "What identifies and describes the content of a aerodynamics, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "content-and-format-q02", "text": "Who or what asserted this about the content of a aerodynamics, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "content-and-format-q03", "text": "What may an agent decide or do once the content of a aerodynamics is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "access-and-rights", "name": "Access, rights and retention", "description": "Who may read, copy or change it, and for how long it is kept.", "findings": [ { "id": "access-rules", "name": "Access rules and retention", "description": "The permissions attached to a aerodynamics and the period it survives.", "questions": [ { "id": "access-rules-q01", "text": "What identifies and describes access to a aerodynamics, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "access-rules-q02", "text": "Who or what asserted this about access to a aerodynamics, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "access-rules-q03", "text": "What may an agent decide or do once access to a aerodynamics is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "subject-and-method", "name": "Subject matter and method", "description": "What aerodynamics studies and how it establishes anything.", "rationale": "A field is identified by its questions and its methods, and those are what distinguish it from the fields next to it.", "layers": [ { "id": "subject", "name": "Subject matter", "description": "The questions it takes as its own.", "findings": [ { "id": "subject-record", "name": "Questions and objects of study", "description": "What it is about, stated so a neighbouring field can be told apart.", "questions": [ { "id": "subject-record-q01", "text": "What questions and objects does aerodynamics take as its own?", "kind": "definition" }, { "id": "subject-record-q02", "text": "Which questions does it share with a neighbouring field, and who claims them?", "kind": "boundary" } ] } ] }, { "id": "method", "name": "Method and evidence", "description": "How claims are established and what counts as evidence.", "findings": [ { "id": "method-record", "name": "Methods and standards of evidence", "description": "The methods used and what they are taken to establish.", "questions": [ { "id": "method-record-q01", "text": "By what methods does aerodynamics establish claims, and what counts as sufficient evidence?", "kind": "provenance" }, { "id": "method-record-q02", "text": "What kind of claim can this field not settle, and where should an agent look instead?", "kind": "action" } ] } ] } ] }, { "id": "institutions-and-classification", "name": "Institutions and classification", "description": "Where aerodynamics is practised and how catalogues place it.", "rationale": "The institutional footprint is the evidence that a field exists as a field rather than as a topic.", "layers": [ { "id": "institutions", "name": "Institutional markers", "description": "Societies, journals, degrees and departments.", "findings": [ { "id": "institution-record", "name": "Bodies and venues", "description": "Where the field organises itself.", "questions": [ { "id": "institution-record-q01", "text": "Which societies, journals or degrees mark aerodynamics as an established field?", "kind": "provenance" }, { "id": "institution-record-q02", "text": "What would show that it is emerging or dissolving rather than established?", "kind": "boundary" } ] } ] }, { "id": "classification", "name": "Classification schemes", "description": "Where library and research classifications put it.", "findings": [ { "id": "classification-record", "name": "Codes and their disagreements", "description": "The classification codes that place it, and where they differ.", "questions": [ { "id": "classification-record-q01", "text": "Which classification schemes place aerodynamics, under what codes?", "kind": "definition" }, { "id": "classification-record-q02", "text": "Where do those schemes disagree about its scope?", "kind": "boundary" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a aerodynamics came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a aerodynamics and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a aerodynamics, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a aerodynamics, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a aerodynamics is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a aerodynamics is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a aerodynamics, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a aerodynamics, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a aerodynamics is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 6, "layers": 12, "findings": 14, "questions": 38 } } } }