Definition:Mach Number
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Definition
Mach number is a unit of measurement of speed of a body $B$ in a fluid $F$.
It is defined as the ratio of the speed of $B$ to the speed of sound in $F$.
Source of Name
This entry was named for Ernst Waldfried Josef Wenzel Mach.
Sources
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): Mach number
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): Mach number