Part 11: Characteristic Numbers·115 entries

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11-8.20

Reynolds electric number

URNurn:iso:std:iso:80000:-11:ed-2:en:item:11-8.20

https://metanorma.github.io/isq-smart/quantities/part-11/t11-8.20
urn:iso:std:iso:80000:-11:ed-2:en:item:11-8.20

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-11:ed-2:en:item:11-8.20

IEC

urn:iec:std:iec:80000-11:2019:::item:11-8.20

Designations

ENReynolds electric number

FRnombre de Reynolds électrique

Symbol

R e_{e}

Notation systems

Rendered

R e_{e}

AsciiMath

Re_"e"

LaTeX

R e_{\text{e}}

Definition

quotient of speed of a fluid and average drift speed of the charged particles in an electrically conducting fluid, expressed by

$R e_{e} = v ε_{e} / (ρ_{e} l μ)$ ; where

$v$ :: is characteristic speed (ISO 80000-3: Space and time) of the fluid,

$ε_{e}$ :: is electric permittivity (IEC 80000-6: Electromagnetism),

$ρ_{e}$ :: is electric charge density (IEC 80000-6: Electromagnetism),

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

$μ$ :: is mobility (ISO 80000-10: Atomic and nuclear physics) of charge carriers

quotient de la vitesse d'un fluide par la vitesse moyenne des particules chargées dans un fluide conducteur de courant électrique, exprimé par:

$R e_{e} = v ε_{e} / (ρ_{e} l μ)$ ; où

$v$ :: est la vitesse caractéristique (ISO 80000-3: Space and time) du fluide;

$ε_{e}$ :: est la permittivité (IEC 80000-6: Electromagnetism);

$ρ_{e}$ :: est la charge électrique volumique (IEC 80000-6: Electromagnetism);

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

$μ$ :: est la mobilité (ISO 80000-10: Atomic and nuclear physics) des porteurs de charge

Notes

This number is also called electrical Reynolds number.

The drift speed of the charged particles in an electric field is given by $v_{d} = \frac{1}{μ E}$ , where

$E$ :: is electric field strength (IEC 80000-6: Electromagnetism), and

$μ$ :: is mobility (ISO 80000-10: Atomic and nuclear physics) of charge carriers.

Ce nombre est aussi appelé nombre électrique de Reynolds.

La vitesse des particules chargées dans un champ électrique est donnée par $v_{d} = \frac{1}{μ E}$ , où

$E$ :: est le champ électrique (IEC 80000-6: Electromagnetism); et

$μ$ :: est la mobilité (ISO 80000-10: Atomic and nuclear physics) des porteurs de charge.

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:t11-8.20

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	11-8.20
skosxl:prefLabel	"Reynolds electric number"@en
skosxl:altLabel	"Re_"e""@en
skos:definition	quotient of speed of a fluid and average drift speed of the charged particles in an electrically conducting fluid, expre…
skos:note	This number is also called electrical Reynolds number. The drift speed of the charged particles in an electric field is…
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