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Meaning of "Mach number" in the English dictionary

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DICTIONARY
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ETYMOLOGY OF THE WORD MACH NUMBER

Named after Ernst Mach.
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Etymology is the study of the origin of words and their changes in structure and significance.
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PRONUNCIATION OF MACH NUMBER

Mach number play
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GRAMMATICAL CATEGORY OF MACH NUMBER

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Mach number is a noun.
A noun is a type of word the meaning of which determines reality. Nouns provide the names for all things: people, objects, sensations, feelings, etc.

WHAT DOES MACH NUMBER MEAN IN ENGLISH?

Mach number

Mach number

In fluid mechanics, Mach number /ˈmɑːx/ is a dimensionless quantity representing the ratio of speed of an object moving through a fluid and the local speed of sound. where M is the Mach number, v is the velocity of the source relative to the medium, and vsound is the speed of sound in the medium. Mach number varies by the composition of the surrounding medium and also by local conditions, especially temperature and pressure. The Mach number can be used to determine if a flow can be treated as an incompressible flow. If M < 0.2–0.3 and the flow is steady and isothermal, compressibility effects will be small and a simplified incompressible flow model can be used. The Mach number is named after Austrian physicist and philosopher Ernst Mach, a designation proposed by aeronautical engineer Jakob Ackeret. Because the Mach number is often viewed as a dimensionless quantity rather than a unit of measure, with Mach, the number comes after the unit; the second Mach number is "Mach 2" instead of "2 Mach".

Definition of Mach number in the English dictionary

The definition of Mach number in the dictionary is the ratio of the speed of a body in a particular medium to the speed of sound in that medium. Mach number 1 corresponds to the speed of sound Often shortened to: Mach.

WORDS THAT BEGIN LIKE MACH NUMBER

Macgillicuddy´s Reeks
MacGregor
MacGuffin
Mach
Machado
machair
machairodont
machan
Machaut
mache
Machel
macher
machete
machi chips
Machiavelian
Machiavelli
Machiavellian
Machiavellianism
Machiavellism
Machiavellist

WORDS THAT END LIKE MACH NUMBER

accession number
call number
climber
cool as a cucumber
cucumber
house number
Humber
lumber
mobile number
number
outnumber
phone number
plumber
reference number
registration number
serial number
slumber
social security number
street number
telephone number
VAT number

Synonyms and antonyms of Mach number in the English dictionary of synonyms

SYNONYMS

Translation of «Mach number» into 25 languages

TRANSLATOR
online translator

TRANSLATION OF MACH NUMBER

Find out the translation of Mach number to 25 languages with our English multilingual translator.
The translations of Mach number from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «Mach number» in English.

Translator English - Chinese

马赫数
1,325 millions of speakers

Translator English - Spanish

número de Mach
570 millions of speakers

English

Mach number
510 millions of speakers

Translator English - Hindi

मच संख्या
380 millions of speakers
ar

Translator English - Arabic

عدد ماخ
280 millions of speakers

Translator English - Russian

число Маха
278 millions of speakers

Translator English - Portuguese

número de Mach
270 millions of speakers

Translator English - Bengali

মেক নম্বর
260 millions of speakers

Translator English - French

nombre de Mach
220 millions of speakers

Translator English - Malay

Nombor Mach
190 millions of speakers

Translator English - German

Mach-Zahl
180 millions of speakers

Translator English - Japanese

マッハ数
130 millions of speakers

Translator English - Korean

마하수
85 millions of speakers

Translator English - Javanese

Jumlah Mach
85 millions of speakers
vi

Translator English - Vietnamese

số Mach
80 millions of speakers

Translator English - Tamil

மேக் எண்
75 millions of speakers

Translator English - Marathi

मच संख्या
75 millions of speakers

Translator English - Turkish

Mach numarası
70 millions of speakers

Translator English - Italian

numero di Mach
65 millions of speakers

Translator English - Polish

liczba Macha
50 millions of speakers

Translator English - Ukrainian

число Маха
40 millions of speakers

Translator English - Romanian

numărul Mach
30 millions of speakers
el

Translator English - Greek

αριθμό Mach
15 millions of speakers
af

Translator English - Afrikaans

Mach-getal
14 millions of speakers
sv

Translator English - Swedish

machtal
10 millions of speakers
no

Translator English - Norwegian

Mach-tall
5 millions of speakers

Trends of use of Mach number

TRENDS

TENDENCIES OF USE OF THE TERM «MACH NUMBER»

The term «Mach number» is regularly used and occupies the 61.152 position in our list of most widely used terms in the English dictionary.
0
100%
FREQUENCY
Regularly used
72
/100
The map shown above gives the frequency of use of the term «Mach number» in the different countries.
Principal search tendencies and common uses of Mach number
List of principal searches undertaken by users to access our English online dictionary and most widely used expressions with the word «Mach number».

FREQUENCY OF USE OF THE TERM «MACH NUMBER» OVER TIME

The graph expresses the annual evolution of the frequency of use of the word «Mach number» during the past 500 years. Its implementation is based on analysing how often the term «Mach number» appears in digitalised printed sources in English between the year 1500 and the present day.

Examples of use in the English literature, quotes and news about Mach number

EXAMPLES

10 ENGLISH BOOKS RELATING TO «MACH NUMBER»

Discover the use of Mach number in the following bibliographical selection. Books relating to Mach number and brief extracts from same to provide context of its use in English literature.
1
Springer Handbook of Mechanical Engineering
These changes in the airflow have a significant effect on the airplane lift and drag curves in the various Mach number ranges. For airplanes that operate entirely within the subsonic speed range, there are no significant effects of compressibility ...
Karl-Heinrich Grote, Erik K. Antonsson, 2009
2
Gas Turbine Engineering Handbook
The positive prewhirl decreases the relative Mach number at the inducer inlet. However, negative prewhirl increases it. A relative Mach number is defined by W1 Mrel = a1 (6-7) where: Mrel = relative Mach number W1 = relative velocity at an ...
Meherwan P. Boyce, 2006
3
The Engineering Handbook, Second Edition
The single most important parameter in the analysis of the compressible fluids is the Mach Number (M), named after the nineteenth century Austrian physicist Emst Mach. The Mach number (a dimen- sionless measure of compressibility) is  ...
Richard C. Dorf, 2004
4
Collisionless Shocks in the Heliosphere: Reviews of Current ...
Different shock shapes are shown for constant sonic Mach number and varying Alfvenic Mach number. As the magnetosonic Mach number AfMS" approaches that used in the usual, or pure, gas dynamic calculation, the shock surface of the  ...
Bruce T. Tsurutani, Robert G. Stone, 1985
5
Process Centrifugal Compressors: Basics, Function, ...
1.10.5 Machine Mach Number (Tip Speed Mach Number) The Mach number is responsible for the compressibility of a flow. The higher the Mach number the greater is the density variation, whenever a change is imposed on the flow, be it ...
Klaus H. Lüdtke, 2004
6
Aircraft Control and Simulation
Therefore, when the dynamic pressure is divided by the modulus of elasticity, we obtain a dimensionless quantity equal to one-half of the square of the free stream Mach number, M, defined by M = VT/a, (2.2-3) where a is the speed of sound at ...
Brian L. Stevens, Frank L. Lewis, 2003
7
Atmospheric and Space Flight Dynamics: Modeling and ...
The alternative semi-empirical method based upon LES allows for the variation of K with Mach number and lift coefficient, CL- A 100% LES would completely prevent flow separation and yield the maximum Oswald's efficiency (e = 1). However ...
Ashish Tewari, 2007
8
Flight Theory and Aerodynamics: A Practical Guide for ...
Subsonic aircraft do not have these design changes and will experience difficulties if the critical Mach number is exceeded. This discussion also applies to subsonic aircraft and helicopters, if they venture into the transonic region of flight,  ...
Charles E. Dole, James E. Lewis, 2000
9
Principles of Helicopter Aerodynamics with CD Extra
A good lift-to-drag ratio over a wide range of Mach number. This will give the rotor a low profile power consumption and the helicopter a low autorotative rate of descent. 4. A low pitching moment. This will help minimize blade torsion moments, ...
J. Gordon Leishman, 2006
10
Jet Propulsion: A Simple Guide to the Aerodynamic and ...
If the inlet flow is axial with Mach number 0.70 and the inlet stagnation temperature on a sea-level test bed is 288 K, find the relative velocity and relative Mach number at the tip of the first stage fan. (Ans: 1 4022 rpm, 549 m/s, M =1 .69) 18.2* ...
N. A. Cumpsty, 2003

10 NEWS ITEMS WHICH INCLUDE THE TERM «MACH NUMBER»

Find out what the national and international press are talking about and how the term Mach number is used in the context of the following news items.
1
Super-fast flights: Are supersonic jets commercially viable?
Supersonic refers to aircraft that can travel at the speed of sound – 1,225 km/h, also known as "Mach number", up to Mach 5 (6,126 km/h). «International Business Times UK, Jul 15»
2
Fly like a fighter: 'Unable'
At some point in the climb we would reach our climb Mach number and then maintain a constant Mach climb to our level off. I was somewhere ... «AOPA Pilot, Jul 15»
3
Skystreak Swan Song
Beyond 0.94 Mach number, the D-558-I experienced a phenomenon known as “Mach Tuck”. This condition is attributable to an aftward shift in ... «seattlepi.com, Jun 15»
4
ATSB highlights flight-mode awareness after 737 incident
"As the aircraft continued to climb at a constant Mach number, the airspeed slowly reduced as a function of the characteristics of the ... «Flightglobal, Jun 15»
5
FlightSafety Receives FAA Qualification for the First Flight Simulator …
... VMO, the maximum airspeed at which an aircraft is certified to operate, and beyond MMO the maximum operating Mach number of an aircraft. «AviationPros.com, Jun 15»
6
Virgin Australia B738 near Adelaide on Nov 7th 2014, speed decay …
The aircraft continued to climb at 280 KIAS, the autopilot changed from maintaining a fixed IAS to a fixed mach number at FL265 as per design ... «The Aviation Herald, Jun 15»
7
ANALYSIS: Cessna Citation Latitude - bigger and better
Passing FL290 we switched to Mach number speeds, and M0.64 was held until levelling off at FL430. Time from brake release to level off was ... «Flightglobal, May 15»
8
NASA RFI: Transformative Aeronautics Concepts Program: Fast …
Also, the speedup must be applicable across the Mach number regime from subsonic to hypersonic. The challenge will provide selected base ... «Space Ref, Apr 15»
9
DoD Officials Discuss Science, Technology Budget
... programs that DARPA is working on with the Air Force, both in hypersonics –- referring to a flow of air with a Mach number greater than five. «Department of Defense, Apr 15»
10
It's not easy being green - how to crack 1000mph
... be looking at for 90 per cent of his high-speed run – is a dial, but that makes it easy to read off the Bloodhound's speed and Mach number. «Autocar, Apr 15»

REFERENCE
« EDUCALINGO. Mach number [online]. Available <https://educalingo.com/en/dic-en/mach-number>. May 2024 ».
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