Part 11: Characteristic Numbers·115 entries

67 / 115

11-6.5

Stanton number

URNurn:iso:std:iso:80000:-11:ed-2:en:item:11-6.5

https://metanorma.github.io/isq-smart/quantities/part-11/t11-6.5
urn:iso:std:iso:80000:-11:ed-2:en:item:11-6.5

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-11:ed-2:en:item:11-6.5

IEC

urn:iec:std:iec:80000-11:2019:::item:11-6.5

Designations

ENStanton number

FRnombre de Stanton

Symbol

S t *

Notation systems

Rendered

S t *

AsciiMath

St**

LaTeX

S t \ast

Definition

relation between mass transfer perpendicular to the surface of a fluid flow and mass transfer parallel to the surface in a free surface flow, expressed by

$S t * = k' / (ρ v)$ ; where

$k'$ :: is mass flux density $q_{m} / A$ through the surface, where

$q_{m}$ ::: is mass flow rate (ISO 80000-4: Mechanics), and

$A$ ::: is area (ISO 80000-3: Space and time),

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

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

relation entre la masse transférée perpendiculairement à la surface d'un écoulement de fluide et la masse transférée parallèlement à la surface dans un écoulement à surface libre, exprimée par:

$S t * = k' / (ρ v)$ ; où

$k'$ :: est le débit-masse surfacique $q_{m} / A$ à travers la surface; où

$q_{m}$ ::: est le débit-masse (ISO 80000-4: Mechanics); et

$A$ ::: est l'aire (ISO 80000-3: Space and time);

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

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

Notes

The Stanton number for mass transfer is also given by $S t * = N$

$u * / P e *$ ; where

$N u *$ :: is the Nusselt number for mass transfer (Nusselt number <mass transfer>), and +

$P e *$ :: is the Péclet number for mass transfer (Péclet number <mass transfer>).

Compare with Stanton number <heat transfer>, the Stanton number for heat transfer.

Le nombre de Stanton pour le transfert de masse est également donné par $S t * = N$

$u * / P e *$ ; où

$N u *$ :: est le nombre de Nusselt pour le transfert de masse (Nusselt number <mass transfer>); et

$P e *$ :: est le nombre de Péclet pour le transfert de masse (Péclet number <mass transfer>).

Comparer avec Stanton number <heat transfer>, nombre de Stanton pour transfert de chaleur.

Referenced by

mass transfer factor

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:t11-6.5

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	11-6.5
skosxl:prefLabel	"Stanton number <mass transfer>"@en
skosxl:altLabel	"St**"@en
skos:definition	relation between mass transfer perpendicular to the surface of a fluid flow and mass transfer parallel to the surface in…
skos:note	The Stanton number for mass transfer is also given by stem:[St = N]stem:[u // Pe]; where stem:[N u]:: is the Nu…
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