The Tibetan singing bowl: acoustics and fluid dynamics

Understand

We present the results of an experimental investigation of the acoustics and fluid dynamics of Tibetan singing bowls.

• Their acoustic behavior is rationalized in terms of the related dynamics of standing bells and wine glasses.
• Striking or rubbing a fluid-filled bowl excites wall vibrations, and concomitant waves at the fluid surface.
• Acoustic excitation of the bowl's natural vibrational modes allows for a controlled study in which the evolution of the surface waves with increasing forcing amplitude is detailed.