Part 11: Characteristic Numbers·115 entries

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11-8.9

Chandrasekhar number

URNurn:iso:std:iso:80000:-11:ed-2:en:item:11-8.9

https://metanorma.github.io/isq-smart/quantities/part-11/t11-8.9
urn:iso:std:iso:80000:-11:ed-2:en:item:11-8.9

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-11:ed-2:en:item:11-8.9

IEC

urn:iec:std:iec:80000-11:2019:::item:11-8.9

Designations

ENChandrasekhar number

FRnombre de Chandrasekhar

Symbol

Q

C h

Notation systems

Rendered

Q

Rendered

C h

AsciiMath

Q

AsciiMath

Ch

LaTeX

Q

LaTeX

C h

Definition

quotient of Lorentz force and viscous force in magnetic convection in a fluid, expressed by

$Q = {(B l)}^{2} σ / ρ v$ ; where

$B$ :: is magnetic flux density (IEC 80000-6: Electromagnetism),

$l$ :: is characteristic length (ISO 80000-3: Space and time), a length scale of the system,

$σ$ :: is electrical conductivity (IEC 80000-6: Electromagnetism),

$ρ$ :: is mass density (ISO 80000-4: Mechanics), and

$v$ :: is kinematic viscosity (ISO 80000-4: Mechanics)

quotient de la force de Lorentz par la force visqueuse dans une convection magnétique dans un fluide, exprimé par

$Q = {(B l)}^{2} σ / ρ v$ ; où

$B$ :: est l'induction magnétique (IEC 80000-6: Electromagnetism),

$l$ :: est la longueur caractéristique (ISO 80000-3: Space and time), une échelle de longueur du système,

$σ$ :: est la conductivité électrique (IEC 80000-6: Electromagnetism),

$ρ$ :: est la masse volumique (ISO 80000-4: Mechanics), et

$v$ :: est la viscosité cinématique (ISO 80000-4: Mechanics)

Notes

The Chandrasekhar number is also given by $Q = H a^{2}$ where $H a$ is the Hartmann number (Hartmann number).

Le nombre de Chandrasekhar est également donné par $Q = H a^{2}$ où $H a$ est le nombre de Hartmann (Hartmann 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:t11-8.9

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	11-8.9
skosxl:prefLabel	"Chandrasekhar number"@en
skosxl:altLabel	"Q"@en"Ch"@en
skos:definition	quotient of Lorentz force and viscous force in magnetic convection in a fluid, expressed by stem:[Q=(Bl)^2 sigma // rho…
skos:note	The Chandrasekhar number is also given by stem:[Q = Ha^2] where stem:[Ha] is the Hartmann number (<<t11-8.5>>).
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