Resonance Frequency Calculator

Calculate the resonant frequency of an open or closed pipe using f = n * v / (2 * L) for open pipes.

m/s
m

Open Pipe Frequency

343.00 Hz

Closed Pipe Frequency (odd n)171.50 Hz

Open Pipe Frequency vs Harmonic Number (n)

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Fórmula

## Resonance in Pipes Standing waves form in pipes at specific frequencies determined by the pipe length and boundary conditions. ### Open Pipe (both ends open) **f_n = n * v / (2L)** where n = 1, 2, 3, ... ### Closed Pipe (one end closed) **f_n = n * v / (4L)** where n = 1, 3, 5, ... (odd harmonics only)

Ejemplo Resuelto

Fundamental frequency of a 0.5 m open pipe at 343 m/s.

  1. 01f_open = n * v / (2L)
  2. 02f_open = 1 * 343 / (2 * 0.5)
  3. 03f_open = 343 Hz
  4. 04f_closed = 1 * 343 / (4 * 0.5)
  5. 05f_closed = 171.5 Hz