Part 11: Characteristic Numbers·115 entries

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Section 11-442 entries

11-4.1Reynolds number 11-4.2Euler number 11-4.3Froude number 11-4.4Grashof number 11-4.5Weber number 11-4.6Mach number 11-4.7Knudsen number 11-4.8Strouhal number, Thomson number 11-4.9drag coefficient 11-4.10Bagnold number 11-4.11Bagnold number <solid particles>11-4.12lift coefficient 11-4.13thrust coefficient 11-4.14Dean number 11-4.15Bejan number 11-4.16Lagrange number 11-4.17Bingham number, plasticity number 11-4.18Hedström number 11-4.19Bodenstein number 11-4.20Rossby number, Kiebel number 11-4.21Ekman number 11-4.22elasticity number 11-4.23Darcy friction factor, Moody friction factor 11-4.24Fanning number 11-4.25Goertler number, Goertler parameter 11-4.26Hagen number 11-4.27Laval number 11-4.28Poiseuille number 11-4.29power number 11-4.30Richardson number 11-4.31Reech number 11-4.32Stokes number <time-related>11-4.33Stokes number <vibrating particles>11-4.34Stokes number <rotameter>, power coefficient <rotameter>11-4.35Stokes number <gravity>11-4.36Stokes number <drag>11-4.37Laplace number, Suratman number 11-4.38Blake number 11-4.39Sommerfeld number 11-4.40Taylor number <momentum transfer>11-4.41Galilei number 11-4.42Womersley number

11-4.37

Laplace number, Suratman number

URNurn:iso:std:iso:80000:-11:ed-2:en:item:11-4.37

Download RDF.jsonld .ttl

https://metanorma.github.io/isq-smart/quantities/part-11/t11-4.37
urn:iso:std:iso:80000:-11:ed-2:en:item:11-4.37

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-11:ed-2:en:item:11-4.37

IEC

urn:iec:std:iec:80000-11:2019:::item:11-4.37

Designations

ENLaplace number

FRnombre de Laplace

ENSuratman number

FRnombre de Suratman

Symbol

L a

S u

Notation systems

Rendered

L a

Rendered

S u

AsciiMath

La

AsciiMath

Su

LaTeX

L a

LaTeX

S u

Definition

relation between capillary forces and viscous forces when characterizing free surface flow, expressed by

$L a = S u = γ ρ l / η^{2}$ ; where

$γ$ :: is surface tension (ISO 80000-4: Mechanics),

$ρ$ :: is mass density (ISO 80000-4: Mechanics) of the fluid,

$l$ :: is characteristic length (ISO 80000-3: Space and time), and

$η$ :: is dynamic viscosity (ISO 80000-4: Mechanics) of the fluid

relation entre les forces capillaires et les forces visqueuses lors de la caractérisation d'un écoulement à surface libre, exprimée par:

$L a = S u = γ ρ l / η^{2}$ ; où

$γ$ :: est la tension superficielle (ISO 80000-4: Mechanics);

$ρ$ :: est la masse volumique (ISO 80000-4: Mechanics) du fluide;

$l$ :: est la longueur caractéristique (ISO 80000-3: Space and time); et

$η$ :: est la viscosité dynamique (ISO 80000-4: Mechanics) du fluide

Notes

The Laplace number is also the ratio of surface tension to momentum transfer, especially dissipation, inside a fluid.

The Laplace number is also given by

$L a = S u = 1 / O h^{2} = R e^{2} / W e$ ; where

$O h$ :: is the Ohnesorge number (Ohnesorge number),

$R e$ :: is the Reynolds number (Reynolds number), and

$W e$ :: is the Weber number (Weber number).

Le nombre de Laplace est également le rapport de la tension superficielle au transfert de quantité de mouvement, notamment par dissipation, à l'intérieur d'un fluide.

Le nombre de Laplace est également donné par:

$L a = S u = 1 / O h^{2} = R e^{2} / W e$ ; où

$O h$ :: est le nombre d'Ohnesorge (Ohnesorge number);

$R e$ :: est le nombre de Reynolds (Reynolds number); et

$W e$ :: est le nombre de Weber (Weber number).

Referenced by

Ohnesorge number

Concept HierarchyPendrill (2024)

1dimensionless quantitiesLevel 0 · Kind

Broader concepts

◇ dimensionless quantities

Ontology
isq:Quantity smart:TermEntry

Class Hierarchy

smart:Entity smart:TermEntryisq:Quantity

A physical quantity as defined in ISO/IEC 80000, with associated symbols, definitions, and units of measurement.

Instance IRI

isq:t11-4.37

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	11-4.37
skosxl:prefLabel	"Laplace number"@en
skosxl:altLabel	"Suratman number"@en"La"@en"Su"@en
skos:definition	relation between capillary forces and viscous forces when characterizing free surface flow, expressed by stem:[La = Su …
skos:note	The Laplace number is also the ratio of surface tension to momentum transfer, especially dissipation, inside a fluid. T…
isq:hasDimension	isq:Dimension
smart:hasBindingnessType	bindingness-type:normative
dcterms:isPartOf	isq:part-11

Related Entities

isq:QuantityShape isq:part-11 isq:Unit isq:Dimension isq:hasDimension smart:TermEntry