Reference : Tibetan singing bowls
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
Tibetan singing bowls
Terwagne, Denis mailto [Université de Liège - ULiège > Département de physique > Physique statistique >]
Bush, John W. M. [Massachusetts Institute of Technology - MIT > Department of Mathematics > > >]
Institute of Physics
Yes (verified by ORBi)
[en] tibetan ; bowl ; Faraday ; wave ; drop ; droplet ; instability ; deformation ; singing ; wineglass ; glass
[en] We present the results of an experimental investigation of the acoustics and fluid dynamics of Tibetan singing bowls. Their acoustic behaviour 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. Particular attention is given to rationalizing the observed criteria for the onset of edge-induced Faraday waves and droplet generation via surface fracture. Our study indicates that drops may be levitated on the fluid surface, induced to bounce on or skip across the vibrating fluid surface.
Researchers ; Professionals ; Students

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Fulltext file(s):

Open access
2011-Nolinearity-Terwagne.pdfPublisher postprint1.18 MBView/Open

Additional material(s):

File Commentary Size Access
Open access
Terwagne_Bouncing_drop.movBouncing drop - video1.27 MBView/Open
Open access
Terwagne_Bowl_Side-top_view2.movTop and side views of the bowl - video2.82 MBView/Open
Open access
Terwagne_Drops.movDrops ejection - video4.12 MBView/Open
Open access
Terwagne_Faraday_waves.movEdge-induced Faraday waves -video473.95 kBView/Open
Open access
Terwagne_Tibetan_bowl2.movTibetan singing bowl - video+audio2.93 MBView/Open

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