Mach Number
M = v / a
What it says
The Mach number is the ratio of an object's speed to the local speed of sound, indicating whether flow is subsonic or supersonic.
Symbols
| Symbol | Quantity | Dimension |
|---|---|---|
M | Mach number (dimensionless) | 1 |
v | Object speed (m/s) | L T^-1 |
a | Speed of sound (m/s) | L T^-1 |
Work it out
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Connects to
Filed under Fluid dynamics · derive through it in the explorer