Hole Size in a Spherical Resonator

When air is blown strongly through a straw and across a hole in a hollow sphere, a high-pitched whistling sound is heard. This paper tests two models, Helmholtz Resonance and Spherical Harmonics, to determine which most accurately models this phenomenon. This was don...

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Bibliographic Details
Main Author:	Jared Kearns
Format:	Article
Language:	English
Published:	StudentScientists.org 2012-06-01
Series:	International Scholastic Journal of Science
Subjects:	whistle sphere hole diameter Helmholtz spherical harmonics
Online Access:	http://isjos.org/ISBJOP/index.php?paper=Hole+Size+in+a+Spherical+Resonator

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spelling	doaj-2fa8d5a5fa834ab0b1c18cf452bd0d762020-11-24T23:37:47ZengStudentScientists.orgInternational Scholastic Journal of Science2408-18842012-06-01621Hole Size in a Spherical ResonatorJared Kearns0International School BangkokWhen air is blown strongly through a straw and across a hole in a hollow sphere, a high-pitched whistling sound is heard. This paper tests two models, Helmholtz Resonance and Spherical Harmonics, to determine which most accurately models this phenomenon. This was done by measuring the frequencies produced when air was blown across identical spheres with different hole sizes, as well as across spheres of different volumes with identical holes. The frequencies were found to closely match frequencies predicted by spherical harmonicshttp://isjos.org/ISBJOP/index.php?paper=Hole+Size+in+a+Spherical+Resonatorwhistlespherehole diameterHelmholtzspherical harmonics
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Jared Kearns
spellingShingle	Jared Kearns Hole Size in a Spherical Resonator International Scholastic Journal of Science whistle sphere hole diameter Helmholtz spherical harmonics
author_facet	Jared Kearns
author_sort	Jared Kearns
title	Hole Size in a Spherical Resonator
title_short	Hole Size in a Spherical Resonator
title_full	Hole Size in a Spherical Resonator
title_fullStr	Hole Size in a Spherical Resonator
title_full_unstemmed	Hole Size in a Spherical Resonator
title_sort	hole size in a spherical resonator
publisher	StudentScientists.org
series	International Scholastic Journal of Science
issn	2408-1884
publishDate	2012-06-01
description	When air is blown strongly through a straw and across a hole in a hollow sphere, a high-pitched whistling sound is heard. This paper tests two models, Helmholtz Resonance and Spherical Harmonics, to determine which most accurately models this phenomenon. This was done by measuring the frequencies produced when air was blown across identical spheres with different hole sizes, as well as across spheres of different volumes with identical holes. The frequencies were found to closely match frequencies predicted by spherical harmonics
topic	whistle sphere hole diameter Helmholtz spherical harmonics
url	http://isjos.org/ISBJOP/index.php?paper=Hole+Size+in+a+Spherical+Resonator
work_keys_str_mv	AT jaredkearns holesizeinasphericalresonator
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Hole Size in a Spherical Resonator

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