Problem 3: Siren

“If you direct an air flow onto a rotating disk with holes, a sound may be heard. Explain this phenomenon and investigate how the sound characteristics depend on the relevant parameters.”

I. Phenomenon Demonstration

• Simple Siren Disc Demonstration //. Homemade Science with Bruce Yeany (YouTube, 2021). https://www.youtube.com/watch?v=-LTtuMj6jZc

• https://soundandscience.de/video/demonstration-disk-siren
• http://berkeleyphysicsdemos.net/node/194

II. Books, Encyclopedia, Discussion and Forum Posts

• Wikipedia (2017). https://en.wikipedia.org/wiki/Siren_disk
• https://sciencedemonstrations.fas.harvard.edu/presentations/siren-discs
• https://www.exploratorium.edu/snacks/siren-disk
• https://www.sciencebuddies.org/stem-activities/build-disk-siren
• https://en.wikipedia.org/wiki/Longitudinal_wave
• https://courses.lumenlearning.com/atd-austincc-physics1/chapter/17-3-sound-intensity-and-sound-level/
• https://pressbooks.pub/sound/chapter/sirens-and-singing-roads/
• https://www.scientificamerican.com/article/building-a-disk-siren/
• T. B. Greenslade, The Physics Teacher 42, 418 (2004).

III. Research Paper

• Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character 98, 414 (1921).
• Regina Collecchia, Dan Somen, and Kevin McElroy. 2014. The Siren Organ. Proceedings of the International Conference on New Interfaces for Musical Expression, Goldsmiths, University of London, pp. 391–394. http://doi.org/10.5281/zenodo.1178732
• Shalash, K., Şahin, F. C., & Schiffmann, J. Non-linear transfer function identification of pressure probes using Siren Disks. Experimental Thermal and Fluid Science, 91, 459–469. (2018).