Part 11: Characteristic Numbers·115 entries

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11-5.12

Brinkman number

URNurn:iso:std:iso:80000:-11:ed-2:en:item:11-5.12

https://metanorma.github.io/isq-smart/quantities/part-11/t11-5.12
urn:iso:std:iso:80000:-11:ed-2:en:item:11-5.12

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-11:ed-2:en:item:11-5.12

IEC

urn:iec:std:iec:80000-11:2019:::item:11-5.12

Designations

ENBrinkman number

FRnombre de Brinkman

Symbol

B r

N_{B r}

Notation systems

Rendered

B r

Rendered

N_{B r}

AsciiMath

Br

AsciiMath

N_(Br)

LaTeX

B r

LaTeX

N_{B r}

Definition

relation between heat produced by viscosity and heat conducted from a wall adjacent to a fluid moving relative to it, expressed by

$B r = η v^{2} / (λ Δ T)$ ; where

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

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

$λ$ :: is thermal conductivity (ISO 80000-5: Thermodynamics), and

$Δ T = T_{W} - T_{0}$ :: is difference of thermodynamic temperature $T$ (ISO 80000-5: Thermodynamics), where

$T_{0}$ :: is bulk fluid temperature, and

$T_{W}$ :: is wall temperature

relation entre la chaleur produite par viscosité et la chaleur transférée par conduction d'une paroi adjacente à un fluide en mouvement par rapport à celle-ci, exprimée par:

$B r = η v^{2} / (λ Δ T)$ ; où

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

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

$λ$ :: est la conductivité thermique (ISO 80000-5: Thermodynamics); et

$Δ T = T_{W} - T_{0}$ :: est la différence de température thermodynamique $T$ (ISO 80000-5: Thermodynamics); où

$T_{0}$ ::: est la température globale du fluide; et

$T_{W}$ ::: est la température de la paroi

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:t11-5.12

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	11-5.12
skosxl:prefLabel	"Brinkman number"@en
skosxl:altLabel	"Br"@en"N_(Br)"@en
skos:definition	relation between heat produced by viscosity and heat conducted from a wall adjacent to a fluid moving relative to it, ex…
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