Phenomenon of Overblowing for Flute or Whistle

Kumar, Gulshan (2021) Phenomenon of Overblowing for Flute or Whistle. Masters thesis, Indian Institute of Science Education and Research Kolkata.

Text (MS Dissertation of Gulshan Kumar (16MS159)) 16MS159_Thesis_file.pdf - Published Version Restricted to Repository staff only Download (2MB)

Abstract

Overblowing is the phenomenon which is used by wind instrument musicians to change the sound to ne via changing the pressure in air flow. We can also see this phenomenon in nature like bird can change the irvoices, and similar lyother animals. We study the phenomenon of overblowing in a systematic way by recording the sound from a uteatdi�erentconstant owrates.WeusenumericalFourieranalysistech- nique toanalyzethefrequencycontentoftherecordedsound.Weanalyzethepower spectrumoftherecordedsoundtostudyhowtheintensityandfrequencyofdi�erent tones of the sound change with flow rate. Further, we study how sound tone changes as the flow changes from laminar at low Reynolds number to turbulent at high Reynolds number.

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