Experimenting with a “Pipe” Whistle
Air jet emerging from an orifice and impinging on a slit at an end of an air column.
Standing wave patterns in a pipe with two open ends. (a) The fundamental, (b) first harmonic. The N's and AN's represent the locations of pressure nodes and antinodes.
Cross section of the whistle with approximate dimensions. The overall length is about 30 cm. Inset: Cross section of cover looking along axis of pipe.
Variation of frequency for constant jet velocity with orifice-to-edge distance for the “pipe” whistle.
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