@prefix isq: .
@prefix smart: .
@prefix rdf: .
@prefix dcterms: .
@prefix skos: .
a isq:Entry ;
rdf:type isq:Quantity ;
rdf:type smart:TermEntry ;
dcterms:identifier "11-5.3" ;
skosxl:prefLabel "Rayleigh number"@en ;
skosxl:altLabel "Ra"@en ;
skos:definition "relation between buoyancy forces due to thermal expansion and viscous forces in free convection in buoyancy driven flow near a heated surface perpendicular to the gravity force, expressed by\n\nstem:[Ra = (l^3 g alpha_V Delta T)/(sf(ii(v)) alpha)]; where\n\nstem:[l]:: is distance (<>) from the wall,\nstem:[g]:: is acceleration of free fall (<>),\nstem:[alpha_V]:: is cubic expansion coefficient (<>) of the fluid,\nstem:[Delta T]:: is difference of thermodynamic temperature (<>) between surface of the wall and the fluid far away from the wall,\nstem:[sf(ii(v))]:: is kinematic viscosity (<>) of the fluid, and\nstem:[alpha]:: is thermal diffusivity (<>) of the fluid\n"@en ;
smart:hasBindingnessType "bindingness-type:normative" ;
dcterms:isPartOf ;
skos:note "The Rayleigh number is also given by\n\nstem:[Ra = Gr * Pr]; where\n\nstem:[Gr]:: is the Grashof number (<>), and\nstem:[Pr]:: is the Prandtl number (<>).\n"@en ;
iso:urn .