What does mach number mean?
Definitions for mach number
mach num·ber
This dictionary definitions page includes all the possible meanings, example usage and translations of the word mach number.
Princeton's WordNet
Mach numbernoun
the ratio of the speed of a moving body to the speed of sound
Wiktionary
Mach numbernoun
The ratio of the velocity of a body to that of sound in the surrounding medium.
Etymology: After the physicist Ernst Mach.
ChatGPT
mach number
The Mach number is a ratio used in physics and fluid dynamics to measure the speed of an object or flow relative to the speed of sound in the same medium. This number is named after the physicist Ernst Mach. If the Mach number is greater than 1, the speed is supersonic, and if it's less than 1, the speed is subsonic. If the Mach number is exactly 1, the speed is transonic.
Wikidata
Mach number
In fluid mechanics, Mach number is a dimensionless quantity representing the ratio of speed of an object moving through a fluid and the local speed of sound. where 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". This is somewhat reminiscent of the early modern ocean sounding unit "mark", which was also unit-first, and may have influenced the use of the term Mach. In the decade preceding faster-than-sound human flight, aeronautical engineers referred to the speed of sound as Mach's number, never "Mach 1."
Matched Categories
Numerology
Chaldean Numerology
The numerical value of mach number in Chaldean Numerology is: 1
Pythagorean Numerology
The numerical value of mach number in Pythagorean Numerology is: 8
Translation
Find a translation for the mach number definition in other languages:
Select another language:
- - Select -
- 简体中文 (Chinese - Simplified)
- 繁體中文 (Chinese - Traditional)
- Español (Spanish)
- Esperanto (Esperanto)
- 日本語 (Japanese)
- Português (Portuguese)
- Deutsch (German)
- العربية (Arabic)
- Français (French)
- Русский (Russian)
- ಕನ್ನಡ (Kannada)
- 한국어 (Korean)
- עברית (Hebrew)
- Gaeilge (Irish)
- Українська (Ukrainian)
- اردو (Urdu)
- Magyar (Hungarian)
- मानक हिन्दी (Hindi)
- Indonesia (Indonesian)
- Italiano (Italian)
- தமிழ் (Tamil)
- Türkçe (Turkish)
- తెలుగు (Telugu)
- ภาษาไทย (Thai)
- Tiếng Việt (Vietnamese)
- Čeština (Czech)
- Polski (Polish)
- Bahasa Indonesia (Indonesian)
- Românește (Romanian)
- Nederlands (Dutch)
- Ελληνικά (Greek)
- Latinum (Latin)
- Svenska (Swedish)
- Dansk (Danish)
- Suomi (Finnish)
- فارسی (Persian)
- ייִדיש (Yiddish)
- հայերեն (Armenian)
- Norsk (Norwegian)
- English (English)
Word of the Day
Would you like us to send you a FREE new word definition delivered to your inbox daily?
Citation
Use the citation below to add this definition to your bibliography:
Style:MLAChicagoAPA
"mach number." Definitions.net. STANDS4 LLC, 2024. Web. 26 Apr. 2024. <https://www.definitions.net/definition/mach+number>.
.jpg/300px-FA-18_Hornet_breaking_sound_barrier_(7_July_1999).jpg "mach number")
Discuss these mach number definitions with the community:
Report Comment
We're doing our best to make sure our content is useful, accurate and safe.
If by any chance you spot an inappropriate comment while navigating through our website please use this form to let us know, and we'll take care of it shortly.
Attachment
You need to be logged in to favorite.
Log In