Closed Pipe Harmonic Frequency
f = n·v / (4·L)
What it says
The resonant frequency of the nth (odd) harmonic in a pipe closed at one end equals n times the speed of sound divided by four times the pipe length, where n takes only odd integer values (1, 3, 5, ...). The closed end is a displacement node and the open end an antinode.
Symbols
| Symbol | Quantity | Dimension |
|---|---|---|
f | Harmonic frequency (Hz) | T^-1 |
n | Odd harmonic number (dimensionless) | 1 |
v | Speed of sound (m/s) | L T^-1 |
L | Pipe length (m) | L |
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Connects to
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