ISQ
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11-4.36

Stokes number

URNurn:iso:std:iso:80000:-11:ed-2:en:item:11-4.36
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urn:iso:std:iso:80000:-11:ed-2:en:item:11-4.36
ISQ Identifiers
ISO
urn:iso:std:iso:80000:-11:ed-2:en:item:11-4.36
IEC
urn:iec:std:iec:80000-11:2019:::item:11-4.36
Designations
ENStokes number
FRnombre de Stokes
Symbol
S t k 4
Notation systems
Rendered
S t k 4
AsciiMath
Stk_4
LaTeX
S t k_{4}

Definition

EN

quotient of drag force and internal friction forces for particles dragged in a fluid

S t k 4 = F D / ( η v l ) ; where

F D :: is drag force (ISO 80000-4: Mechanics),

η :: is dynamic viscosity (ISO 80000-4: Mechanics),

v :: is speed (ISO 80000-3: Space and time), and

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

FR

quotient de la traînée par les forces de frottement interne pour des particules entraînées dans un fluide

S t k 4 = F D / ( η v l ) ; où

F D :: est la traînée (ISO 80000-4: Mechanics);

η :: est la viscosité dynamique (ISO 80000-4: Mechanics);

v :: est la vitesse (ISO 80000-3: Space and time); et

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

0
Concept HierarchyPendrill (2024)
1dimensionless quantitiesLevel 0 · Kind

Ontology

Class Hierarchy

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

Instance IRI

isq:t11-4.36
PropertyValue
rdf:type
dcterms:identifier
11-4.36
skosxl:prefLabel
"Stokes number <drag>"@en
skosxl:altLabel
"Stk_4"@en
skos:definition
quotient of drag force and internal friction forces for particles dragged in a fluid stem:[Stk_4=F_"D"//(eta v l)]; whe…
isq:hasDimension
smart:hasBindingnessType
dcterms:isPartOf