exported
equivalent
flow modification accessory
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Flowmodificationaccessory
Generated on 2026-05-04
Natural Language Definition
EN
A MaterialArtifact that bears a FlowModificationFunction and that is used as a component in flow control assemblies to alter the characteristics of fluid flow such as velocity profile, turbulence, or pressure distribution.
PT-BR
Um MaterialArtifact que possui uma FlowModificationFunction e que é usado como componente em conjuntos de controle de fluxo para alterar as características do fluxo de fluido, como perfil de velocidade, turbulência ou distribuição de pressão.
Formal Axioms
Semi-formal (Aristotelian)
Every flow modification accessory is a MaterialArtifact that bears a FlowModificationFunction and participates in processes that alter fluid flow characteristics.
First-Order Logic Theory
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▸ Stored override
∀x(FlowModificationAccessory(x) ↔ (MaterialArtifact(x) ∧ ∃f(FlowModificationFunction(f) ∧ bearerOf(x,f))))
OWL 2 / Turtle
@prefix copi: <https://www.inf.ufrgs.br/ontologies/copi/> .
@prefix : <https://www.inf.ufrgs.br/ontologies/copi/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix bfo: <http://purl.obolibrary.org/obo/> .
@prefix iof-core: <https://spec.industrialontologies.org/ontology/construct/> .
@prefix iof-av: <https://spec.industrialontologies.org/ontology/annotation/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix qudt: <http://qudt.org/schema/qudt/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix apv: <http://inf.ufrgs.br/ontologies/apv#> .
### COPI — Core Ontology for Petroleum Installations
### Class module: FlowModificationAccessory
<https://www.inf.ufrgs.br/ontologies/copi>
rdf:type owl:Ontology ;
dcterms:title "Core Ontology for Petroleum Installations (COPI)"@en ;
dcterms:title "Ontologia Core para Instalações de Petróleo (COPI)"@pt-br ;
dcterms:description "BFO/IOF-Core conformant ontology of equipment classes for petroleum production plants, developed using the five-step RDL enrichment method."@en ;
skos:scopeNote "Material artifacts (bfo:material_entity) that (i) are part of a petroleum production plant, and (ii) bear at least one function whose realization involves the transport (e.g. production and injection), processing (separation and other processes), control, monitoring, measurement, containment or offloading of material or energy."@en ;
skos:scopeNote "Artefatos materiais (bfo:material_entity) que (i) fazem parte de uma planta de produção de petróleo, e (ii) possuem ao menos uma função cuja realização envolve o transporte (p. ex. produção e injeção), processamento (separação e outros processos), controle, monitoramento, medição, contenção ou escoamento de material ou energia."@pt-br ;
skos:scopeNote "COPI provides high-level equipment categories defined by function to demonstrate the defined-class mechanism. Equipment subtypes are annotated with references to CFIHOS and PCA RDL terms. COPI is not a reference data library; organizations should use CFIHOS, PCA RDL, or ISO 14224 for comprehensive equipment classification."@en ;
skos:scopeNote "COPI fornece categorias de alto nível de equipamentos definidas por função para demonstrar o mecanismo de classe definida. Os subtipos de equipamentos são anotados com referências aos termos do CFIHOS e do PCA RDL. COPI não é uma biblioteca de dados de referência; organizações devem utilizar o CFIHOS, o PCA RDL ou a ISO 14224 para classificação abrangente de equipamentos."@pt-br ;
owl:versionInfo "1.1.0" ;
owl:imports <https://spec.industrialontologies.org/ontology/core/Core/> ;
owl:imports <http://purl.obolibrary.org/obo/bfo/2020/bfo.owl> ;
dcterms:creator "Nicolau Oyhenard dos Santos"@en ;
dcterms:contributor "Cauã Antunes" ;
dcterms:contributor "Haroldo Rojas" ;
dcterms:contributor "Rafael Petry" ;
dcterms:contributor "Régis Romeu" ;
dcterms:contributor "Mara Abel" ;
dcterms:isPartOf <https://inf.ufrgs.br/projetos/OntoKG> ;
dcterms:publisher "Universidade Federal do Rio Grande do Sul (UFRGS)"@en ;
dcterms:license <https://creativecommons.org/licenses/by/4.0/> ;
dcterms:created "2026-04-08"^^xsd:date ;
dcterms:modified "2026-10-07"^^xsd:date ;
apv:GlobalMinLanguageCoverage "en pt-br" ;
apv:ClassURIFormationRule "https://www[.]inf[.]ufrgs[.]br/ontologies/copi/(COPI_[0-9]{7}|[A-Z][A-Za-z0-9]*)" ;
apv:ClassMinAnnotationCoverage "rdfs:label https://spec.industrialontologies.org/ontology/annotation/naturalLanguageDefinition" .
iof-av:naturalLanguageDefinition rdf:type owl:AnnotationProperty ;
apv:MinAnnotationLength 20 .
### Identity-giving function
:COPI_0000523 rdf:type owl:Class ; # FlowModificationFunction
rdfs:subClassOf :COPI_0000026 ; # FlowControlFunction
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000524 # FlowModificationProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000524 # FlowModificationProcess
] ;
rdfs:label "flow modification function"@en ;
rdfs:label "função de modificação de fluxo"@pt-br ;
iof-av:naturalLanguageDefinition "A FlowControlFunction that is realized in a FlowModificationProcess and that consists in altering the characteristics of fluid flow (such as velocity profile, turbulence, pressure drop pattern, or flow distribution) without primarily controlling the flow rate or direction."@en ;
skos:definition "A FlowControlFunction that is realized in a FlowModificationProcess and that consists in altering the characteristics of fluid flow (such as velocity profile, turbulence, pressure drop pattern, or flow distribution) without primarily controlling the flow rate or direction."@en .
:COPI_0000026 rdf:type owl:Class . # FlowControlFunction
### Process type
:COPI_0000524 rdf:type owl:Class ; # FlowModificationProcess
rdfs:subClassOf :COPI_0000010 ; # FlowControl
rdfs:label "flow modification process"@en ;
rdfs:label "processo de modificação de fluxo"@pt-br ;
iof-av:naturalLanguageDefinition "A PlannedProcess in which the characteristics of fluid flow are altered by a flow modification accessory, resulting in changes to flow patterns, velocity profiles, turbulence levels, or pressure drop characteristics while the fluid passes through or around the device."@en ;
skos:definition "A PlannedProcess in which the characteristics of fluid flow are altered by a flow modification accessory, resulting in changes to flow patterns, velocity profiles, turbulence levels, or pressure drop characteristics while the fluid passes through or around the device."@en .
:COPI_0000010 rdf:type owl:Class . # FlowControl
:COPI_0000524 # FlowModificationProcess
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasInput ;
owl:someValuesFrom :COPI_0000037 # PortionOfFluid
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom :COPI_0000037 # PortionOfFluid
] .
### Equipment universal: FlowModificationAccessory
:COPI_0000083 rdf:type owl:Class ; # FlowModificationAccessory
owl:equivalentClass [
rdf:type owl:Class ;
owl:intersectionOf (
iof-core:MaterialArtifact
[
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart)
owl:someValuesFrom :COPI_0000523 # FlowModificationFunction
]
)
] ;
rdfs:label "flow modification accessory"@en ;
rdfs:label "MaterialArtifact que possui uma FlowModificationFunction e"@pt-br ;
iof-av:naturalLanguageDefinition "A MaterialArtifact that bears a FlowModificationFunction and that is used as a component in flow control assemblies to alter the characteristics of fluid flow such as velocity profile, turbulence, or pressure distribution."@en ;
skos:definition "A MaterialArtifact that bears a FlowModificationFunction and that is used as a component in flow control assemblies to alter the characteristics of fluid flow such as velocity profile, turbulence, or pressure distribution."@en ;
iof-av:naturalLanguageDefinition "Um MaterialArtifact que possui uma FlowModificationFunction e que é usado como componente em conjuntos de controle de fluxo para alterar as características do fluxo de fluido, como perfil de velocidade, turbulência ou distribuição de pressão."@pt-br ;
iof-av:semiFormalNaturalLanguageAxiom "Every flow modification accessory is a MaterialArtifact that bears a FlowModificationFunction and participates in processes that alter fluid flow characteristics."@en ;
iof-av:firstOrderLogicAxiom "∀x(FlowModificationAccessory(x) ↔ (MaterialArtifact(x) ∧ ∃f(FlowModificationFunction(f) ∧ bearerOf(x,f))))"@en ;
skos:definition "[ISO 15926-4] A<FLOW MODIFICATION ACCESSORY> is a <FINAL CONTROL ASSEMBLY COMPONENT> and a <MODIFIER> that is used to modify the characteristics of fluid flow"@en .
Axiomatization Decision Log
1
Identity-Giving Function
Function class
FlowModificationFunction
⊑ FlowControlFunction
Realized in
FlowModificationProcess
⊑ FlowControl
Flow modification is the identity-giving function — what makes this equipment type distinct from other flow control devices. It is more specific than general FlowControlFunction because it focuses on altering flow characteristics rather than controlling flow rate or isolation. This differs from existing functions like FlowRestrictionFunction (which creates pressure drop) by being broader and encompassing various flow characteristic alterations.
2
Genus Determination
MaterialArtifact
bfo:Object (BFO_0000030)
Monolithic causally unified material artefact.
MaterialArtifact ≡ Object ⊓ ∃bearerOf.DesignedFunction.
This appears to be a root equipment category with no more specific superclass available. The parent candidates (FINAL CONTROL ASSEMBLY COMPONENT, MODIFIER) are too abstract and not domain-specific equipment classes. The concept represents a distinct category of flow accessories that would be the genus for more specific types like restriction orifices, flow conditioners, etc. Since it is itself the most specific category available, it becomes its own genus. The BFO root is MaterialArtifact as these are typically individual devices installed in piping systems.
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
No component terms are available in the source standards, and the definition is too generic to specify universal parts. Flow modification accessories can have diverse physical implementations (orifice plates, flow conditioners, trim elements) with no common structural components that would be necessary across all subtypes.
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
PortionOfFluid
— any phase - liquid, gas, or multiphase stream entering the device
Outputs (O)
PortionOfFluid
— same fluid with modified flow characteristics - altered velocity profile, turbulence, or pressure distribution
Transformation (T)
fluid flow characteristics modified to alter velocity profiles, turbulence levels, or pressure distribution patterns
The signature captures the essential transformation - fluid enters with one set of flow characteristics and exits with modified characteristics. The transformation_kind is flow_regulation as it involves modifying flow behavior, though not necessarily controlling flow rate.
5
Axiom Mode Decision
Necessary + Sufficient
— modelled as a defined class
(≡, EquivalentClass). Automatic classification is
appropriate for this concept.
Cross-Standard Observations
Only one source (ISO 15926-4) defines this concept. The definition is quite generic, suggesting this may be a high-level category that would benefit from additional sources providing more specific characterizations or subtypes.
