@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:t11-4.31>
  a isq:Entry ;
  rdf:type isq:Quantity ;
  rdf:type smart:TermEntry ;
  dcterms:identifier "11-4.31" ;
  skosxl:prefLabel "Reech number"@en ;
  skosxl:altLabel "Ree"@en ;
  skos:definition "relation between the speed of an object submerged in water relative to the water, and wave propagation speed, expressed by\n\nstem:[Ree = sqrt(gl)//v]; where\n\nstem:[g]:: is acceleration of free fall (<<iso80000-3>>),\nstem:[l]:: is characteristic length (<<iso80000-3>>), and\nstem:[v]:: is speed (<<iso80000-3>>) of the object relative to the water\n"@en ;
  smart:hasBindingnessType "bindingness-type:normative" ;
  dcterms:isPartOf <isq:part-11> ;
  skos:note "The Reech number can be used to determine the resistance of a partially submerged object (e.g. a ship) of length stem:[l] (in direction of the motion) moving through water.\n\nA similar quantity is defined as the Boussinesq number stem:[Bs = v//sqrt(2gl)].\n"@en ;
  iso:urn <urn:iso:std:iso:80000:-11:ed-2:en:item:11-4.31> .