@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:t11-4.34>
  a isq:Entry ;
  rdf:type isq:Quantity ;
  rdf:type smart:TermEntry ;
  dcterms:identifier "11-4.34" ;
  skosxl:prefLabel "Stokes number <rotameter>"@en ;
  skosxl:altLabel "power coefficient <rotameter>"@en ;
  skosxl:altLabel "Stk_2"@en ;
  skos:definition "Stokes number for calibration of rotameters metering vertical flows of fluids by means of a floating body, expressed by\n\nstem:[Stk_2 = {r^3 g m rho}/{eta^2} {(rho_{\"b\"} - rho)}/{rho_{\"b\"}} = {r^3 g m}/{v^2} (1/{rho} - 1/{rho_{\"b\"}})]; where\n\nstem:[r]:: is ratio of pipe and float radii,\nstem:[g]:: is acceleration of free fall (<<iso80000-3>>),\nstem:[m]:: is mass (<<iso80000-4>>) of the body,\nstem:[rho]:: is mass density (<<iso80000-4>>) of the fluid,\nstem:[eta]:: is dynamic viscosity (<<iso80000-4>>) of the fluid,\nstem:[rho_\"b\"]:: is mass density (<<iso80000-4>>) of the body, and\nstem:[sf(ii(v))]:: is kinematic viscosity (<<iso80000-4>>) of the fluid\n"@en ;
  smart:hasBindingnessType "bindingness-type:normative" ;
  dcterms:isPartOf <isq:part-11> ;
  skos:note "In general use, this value is multiplied by stem:[1.042].\n\nSee also the Archimedes number (<<t11-6.12>>).\n"@en ;
  iso:urn <urn:iso:std:iso:80000:-11:ed-2:en:item:11-4.34> .