@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:t11-4.27>
  a isq:Entry ;
  rdf:type isq:Quantity ;
  rdf:type smart:TermEntry ;
  dcterms:identifier "11-4.27" ;
  skosxl:prefLabel "Laval number"@en ;
  skosxl:altLabel "La"@en ;
  skos:definition "quotient of speed and the (critical) sound speed at the throat of a nozzle, expressed by\n\nstem:[La = v // sqrt((R_\"s\"T 2 gamma)//(gamma + 1))]; where\n\nstem:[v]:: is speed (<<iso80000-3>>),\nstem:[R_\"s\" = R/M]:: is specific gas constant, where\nstem:[R]::: is molar gas constant (<<iso80000-9>>), and\nstem:[M]::: is molar mass (<<iso80000-9>>),\nstem:[T]:: is thermodynamic temperature (<<iso80000-5>>), and\nstem:[gamma]:: is ratio of the specific heat capacities (<<iso80000-5>>)\n"@en ;
  smart:hasBindingnessType "bindingness-type:normative" ;
  dcterms:isPartOf <isq:part-11> ;
  skos:note "The Laval number is a specific kind of Mach number (<<t11-4.6>>)."@en ;
  iso:urn <urn:iso:std:iso:80000:-11:ed-2:en:item:11-4.27> .