{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,8]],"date-time":"2025-09-08T05:44:21Z","timestamp":1757310261911},"reference-count":14,"publisher":"American Association of Physics Teachers (AAPT)","issue":"6","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2011,9,1]]},"abstract":"<jats:p>Sound tubes, pipes, and singing rods are used as musical instruments and as toys to perform amusing experiments. In particular, corrugated tubes present unique characteristics with respect to the sounds they can produce; that is why they have been studied so intensively, both at theoretical and experimental levels.1\u20134 Experimental studies usually involve expensive and sophisticated equipment that is out of reach of school laboratory facilities.3\u20136 In this paper we show how to investigate quantitatively the sounds produced by a flexible sound tube corrugated on the inside by using educational equipment readily available in school laboratories, such as the oscilloscope, the microphone, the anemometer, and the air pump. We show that it is possible for students to study the discontinuous spectrum of sounds produced by a flexible corrugated tube and go even further, computing the speed of sound in air with a simple experimental procedure.<\/jats:p>","DOI":"10.1119\/1.3628265","type":"journal-article","created":{"date-parts":[[2011,8,24]],"date-time":"2011-08-24T22:25:11Z","timestamp":1314224711000},"page":"360-362","update-policy":"http:\/\/dx.doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":10,"title":["A Simple Experiment to Explore Standing Waves in a Flexible Corrugated Sound Tube"],"prefix":"10.1119","volume":"49","author":[{"given":"Maria Eva","family":"Amorim","sequence":"first","affiliation":[{"name":"Universidade do Porto IFIMUP, Departamento de F\u00edsica e Astronomia, Faculdade de Ci\u00eancias, , Portugal"}]},{"given":"Teresa Delmira","family":"Sousa","sequence":"additional","affiliation":[{"name":"Universidade do Porto IFIMUP, Departamento de F\u00edsica e Astronomia, Faculdade de Ci\u00eancias, , Portugal"}]},{"given":"P. Sime\u00e3o","family":"Carvalho","sequence":"additional","affiliation":[{"name":"Universidade do Porto IFIMUP, Departamento de F\u00edsica e Astronomia, Faculdade de Ci\u00eancias, , Portugal"}]},{"given":"Adriano Sampaioe","family":"Sousa","sequence":"additional","affiliation":[{"name":"Escola Secund\u00e1ria de Fontes Pereira de Melo , Porto, Portugal"}]}],"member":"3","published-online":{"date-parts":[[2011,8,24]]},"reference":[{"key":"2023062921365236100_c1","article-title":"A phenomenological model for sound generation in corrugated pipes","volume-title":"ISMA2007 - International Symposium on Musical Acoustics","year":"2007"},{"key":"2023062921365236100_c2","article-title":"Flow-acoustic interactions in corrugated pipes: time-domain simulation of experimental phenomena","volume-title":"9th International Conference on Flow Induced Vibrations (FIV-2008)","author":"Zolotarev","year":"2008"},{"issue":"3","key":"2023062921365236100_c3","doi-asserted-by":"publisher","first-page":"1337","DOI":"10.1121\/1.2434241","article-title":"Experiments on sound generation in corrugated pipes with flow","volume":"121","year":"2007","journal-title":"J. Acoust. Soc. Am."},{"key":"2023062921365236100_c4","article-title":"The voice of the dragon: A physical model of a rotation corrugated tube","volume-title":"Proceedings of the 6th International Conference on Digital Audio Effects (DAFx-03)","year":"2003"},{"key":"2023062921365236100_c5","article-title":"Experimental study on the flow-excited acoustical lock-in in a corrugated pipe","volume-title":"ICSV14 - International Congress on Sound and Vibration","year":"2007"},{"key":"2023062921365236100_c6","doi-asserted-by":"publisher","first-page":"2924","DOI":"10.1016\/j.ijheatmasstransfer.2010.01.037","article-title":"The effects of corrugation pitch on the condensation heat transfer coefficient and pressure drop of R-134a inside horizontal corrugated tube","volume":"53","year":"2010","journal-title":"Int. J. Heat Transfer"},{"key":"2023062921365236100_c7","doi-asserted-by":"publisher","first-page":"314","DOI":"10.1119\/1.2344699","article-title":"Harmonics in an aluminum rod: \u2018A Golden Oldie,\u2019","volume":"35","year":"1997","journal-title":"Phys. Teach."},{"key":"2023062921365236100_c8","article-title":"Singing Rods","year":"2001"},{"key":"2023062921365236100_c9","first-page":"633","volume-title":"University Physics","year":"1996","edition":"9th ed."},{"issue":"6","key":"2023062921365236100_c10","doi-asserted-by":"publisher","first-page":"508","DOI":"10.1088\/0031-9120\/40\/6\/F07","article-title":"Resonance in an open tube: A new demonstration","volume":"40","year":"2005","journal-title":"Phys. Educ."},{"key":"2023062921365236100_c11","doi-asserted-by":"publisher","first-page":"255","DOI":"10.1016\/0169-5983(91)90018-E","article-title":"Sound generation in corrugated tubes","volume":"7","year":"1991","journal-title":"Fluid Dyn. Res."},{"key":"2023062921365236100_c12"},{"key":"2023062921365236100_c13"},{"key":"2023062921365236100_c14","first-page":"65","volume-title":"The Science of Sound","year":"2002","edition":"3rd ed."}],"container-title":["The Physics Teacher"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pubs.aip.org\/aapt\/pte\/article-pdf\/49\/6\/360\/13633481\/360_1_online.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/pubs.aip.org\/aapt\/pte\/article-pdf\/49\/6\/360\/13633481\/360_1_online.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,6,29]],"date-time":"2023-06-29T21:37:06Z","timestamp":1688074626000},"score":1,"resource":{"primary":{"URL":"https:\/\/pubs.aip.org\/pte\/article\/49\/6\/360\/276806\/A-Simple-Experiment-to-Explore-Standing-Waves-in-a"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2011,8,24]]},"references-count":14,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2011,8,24]]},"published-print":{"date-parts":[[2011,9,1]]}},"URL":"https:\/\/doi.org\/10.1119\/1.3628265","relation":{},"ISSN":["0031-921X","1943-4928"],"issn-type":[{"value":"0031-921X","type":"print"},{"value":"1943-4928","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2011,9]]},"published":{"date-parts":[[2011,8,24]]}}}