Part 11: Characteristic Numbers·115 entries

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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

11-4.6

Mach number

URNurn:iso:std:iso:80000:-11:ed-2:en:item:11-4.6

Download RDF.jsonld .ttl

https://metanorma.github.io/isq-smart/quantities/part-11/t11-4.6
urn:iso:std:iso:80000:-11:ed-2:en:item:11-4.6

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-11:ed-2:en:item:11-4.6

IEC

urn:iec:std:iec:80000-11:2019:::item:11-4.6

Designations

ENMach number

FRnombre de Mach

Symbol

M a

Notation systems

Rendered

M a

AsciiMath

Ma

LaTeX

M a

Definition

quotient of the speed of flow and the speed of sound, expressed by

$M a = v / c$ ; where

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

$c$ :: is speed of sound (ISO 80000-8: Acoustics) in the fluid

quotient de la vitesse d'écoulement par la vitesse du son, exprimé par:

$M a = v / c$ ; où

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

$c$ :: est la vitesse du son (ISO 80000-8: Acoustics) dans le fluide

Notes

The Mach number represents the relationship of inertial forces compared to compression forces.

For an ideal gas

$c = \sqrt{γ \frac{p}{ρ}} = \sqrt{γ \frac{R T}{M}} = \sqrt{γ \frac{k T}{m}}$ ; where $γ$ is ratio of the specific heat capacity (ISO 80000-5: Thermodynamics).

Le nombre de Mach représente la relation entre les forces d'inertie et les forces de compression.

Pour un gaz parfait:

$c = \sqrt{γ \frac{p}{ρ}} = \sqrt{γ \frac{R T}{M}} = \sqrt{γ \frac{k T}{m}}$ ; où $γ$ est le rapport des capacités thermiques massiques (ISO 80000-5: Thermodynamics).

Referenced by

Laval 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:t11-4.6

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	11-4.6
skosxl:prefLabel	"Mach number"@en
skosxl:altLabel	"Ma"@en
skos:definition	quotient of the speed of flow and the speed of sound, expressed by stem:[Ma = v//c]; where stem:[v]:: is speed (<<iso8…
skos:note	The Mach number represents the relationship of inertial forces compared to compression forces. For an ideal gas stem:[…
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