@prefix isq: <https://w3id.org/standards/isq/ontologies/core/> .
@prefix smart: <https://example.org/smart-sdu/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<isq:t11-4.28>
  a isq:Entry ;
  rdf:type isq:Quantity ;
  rdf:type smart:TermEntry ;
  dcterms:identifier "11-4.28" ;
  skosxl:prefLabel "Poiseuille number"@en ;
  skosxl:altLabel "Poi"@en ;
  skos:definition "quotient of propulsive force by pressure and viscous force for a flow of fluids in a pipe, expressed by\n\nstem:[Poi = (Delta p)/l d^2/(eta v)]; where\n\nstem:[Delta p]:: is drop of pressure (<<iso80000-4>>) along the pipe,\nstem:[l]:: is length (<<iso80000-3>>) of the pipe,\nstem:[d]:: is diameter (<<iso80000-3>>) of the pipe,\nstem:[eta]:: is dynamic viscosity (<<iso80000-4>>) of the fluid, and\nstem:[v]:: is characteristic speed (<<iso80000-3>>) of the fluid\n"@en ;
  smart:hasBindingnessType "bindingness-type:normative" ;
  dcterms:isPartOf <isq:part-11> ;
  skos:note "The Poiseuille number is stem:[Poi=32] for laminar flow in a round pipe.\n\nSee also the Hagen number (<<t11-4.26>>).\n"@en ;
  iso:urn <urn:iso:std:iso:80000:-11:ed-2:en:item:11-4.28> .