Part 11: Characteristic Numbers·115 entries

29 / 115

Section 11-442 entries

11-4.1Reynolds number 11-4.2Euler number 11-4.3Froude number 11-4.4Grashof number 11-4.5Weber number 11-4.6Mach number 11-4.7Knudsen number 11-4.8Strouhal number, Thomson number 11-4.9drag coefficient 11-4.10Bagnold number 11-4.11Bagnold number <solid particles>11-4.12lift coefficient 11-4.13thrust coefficient 11-4.14Dean number 11-4.15Bejan number 11-4.16Lagrange number 11-4.17Bingham number, plasticity number 11-4.18Hedström number 11-4.19Bodenstein number 11-4.20Rossby number, Kiebel number 11-4.21Ekman number 11-4.22elasticity number 11-4.23Darcy friction factor, Moody friction factor 11-4.24Fanning number 11-4.25Goertler number, Goertler parameter 11-4.26Hagen number 11-4.27Laval number 11-4.28Poiseuille number 11-4.29power number 11-4.30Richardson number 11-4.31Reech number 11-4.32Stokes number <time-related>11-4.33Stokes number <vibrating particles>11-4.34Stokes number <rotameter>, power coefficient <rotameter>11-4.35Stokes number <gravity>11-4.36Stokes number <drag>11-4.37Laplace number, Suratman number 11-4.38Blake number 11-4.39Sommerfeld number 11-4.40Taylor number <momentum transfer>11-4.41Galilei number 11-4.42Womersley number

11-4.29

power number

URNurn:iso:std:iso:80000:-11:ed-2:en:item:11-4.29

Download RDF.jsonld .ttl

https://metanorma.github.io/isq-smart/quantities/part-11/t11-4.29
urn:iso:std:iso:80000:-11:ed-2:en:item:11-4.29

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-11:ed-2:en:item:11-4.29

IEC

urn:iec:std:iec:80000-11:2019:::item:11-4.29

Designations

ENpower number

FRnombre de puissance

Symbol

P n

Notation systems

Rendered

P n

AsciiMath

Pn

LaTeX

P n

Definition

quotient of power consumption by agitators due to drag and rotational inertial power in fluids, expressed by

$P n = P / (ρ n^{3} d^{5})$ ; where

$P$ :: is active power (IEC 80000-6: Electromagnetism) consumed by a stirrer,

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

$n$ :: is rotational frequency (ISO 80000-3: Space and time), and

$d$ :: is diameter (ISO 80000-3: Space and time) of stirrer

quotient de la puissance consommée par les agitateurs en raison de la traînée par la puissance d'inertie de rotation dans des fluides, exprimé par:

$P n = P / (ρ n^{3} d^{5})$ ; où

$P$ :: est la puissance active (IEC 80000-6: Electromagnetism) consommée par un agitateur;

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

$n$ :: est la fréquence de rotation (ISO 80000-3: Space and time); et

$d$ :: est le diamètre (ISO 80000-3: Space and time) de l'agitateur

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:t11-4.29

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	11-4.29
skosxl:prefLabel	"power number"@en
skosxl:altLabel	"Pn"@en
skos:definition	quotient of power consumption by agitators due to drag and rotational inertial power in fluids, expressed by stem:[Pn =…
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