- mach number
- The ratio of the velocity of a body to that of sound in the surrounding medium.
Military dictionary. 2000.
mach number
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Mach number — (mathrm{Ma} or M) (generally pronEng|ˈmɑːk, sometimes IPA|/ˈmɑːx/ or IPA|/ˈmæk/) is the speed of an object moving through air, or any fluid substance, divided by the speed of sound as it is in that substance. It is commonly used to represent an… … Wikipedia
mach number — mach. Also, Mach number. [1935 40] * * * ▪ physics in fluid mechanics, ratio of the velocity of a fluid to the velocity of sound in that fluid, named after Ernst Mach (Mach, Ernst) (1838–1916), an Austrian physicist and philosopher. In the… … Universalium
Mach number — mäk n a number representing the ratio of the speed of a body to the speed of sound in a surrounding medium (as air) <a Mach number of 2 indicates a speed that is twice that of sound> … Medical dictionary
mach number — n. (aeronautics) The ratio of the speed of a moving body to the speed of sound. [WordNet 1.5] … The Collaborative International Dictionary of English
Mach number — is the relative velocity of a fluid compared to its sonic velocity. Mach numbers less than 1 correspond to sub sonic velocities, and Mach numbers > 1 correspond to super sonic velocities … Mechanics glossary
Mach number — [mäk] n. [after E. Mach (1838 1916), Austrian physicist] [also m n ] a number representing the ratio of the speed of an object to the speed of sound in the surrounding medium, as air, through which the object is moving … English World dictionary
Mach number — Macho skaičius statusas T sritis fizika atitikmenys: angl. Mach number vok. Mach Zahl, f rus. число Маха, n pranc. mach, m; nombre de Mach, m; nombre M, m … Fizikos terminų žodynas
Mach number — The ratio of the velocity of a body to that of sound in a surrounding medium. A Mach number of 0.8 or 1.2 means that the aircraft is flying at 0.8 or 1.2 times, respectively, the local speed of sound at that ambient temperature. Also known as a… … Aviation dictionary
Mach number — Macho skaičius statusas T sritis Energetika apibrėžtis Nedimensinis dydis, lygus dujų greičio ir vietinio (t.y. to paties srauto taško) garso greičio santykiui. Tai vienas iš pagrindinių panašumo kriterijų, apibūdinantis terpės (aplinkos) spūdumo … Aiškinamasis šiluminės ir branduolinės technikos terminų žodynas
Mach number — Macho skaičius statusas T sritis Standartizacija ir metrologija apibrėžtis Vidutinio ašinio skysčio arba dujų greičio ir garso skystyje arba dujose greičio dalmuo esant tam tikrai temperatūrai ir slėgiui. Jis skaičiuojamas pagal formulę: M = U/c; … Penkiakalbis aiškinamasis metrologijos terminų žodynas
Mach number — Macho skaičius statusas T sritis Gynyba apibrėžtis Vienas iš pagrindinių dujų srauto rodiklių – M=v/a, v – dujų srauto greitis, a – garso greitis tame pačiame dujų srauto taške. Kai M<1, laikoma, kad srauto greitis mažesnis už garso greitį;… … Artilerijos terminų žodynas
