Original title: Bubble dynamics in drinks
Authors: Broučková, Zuzana ; Trávníček, Zdeněk ; Šafařík, P.
Document type: Papers
Conference/Event: Experimental Fluid Mechanics 2013, Kutná hora (CZ), 2013-11-19 / 2013-11-22
Year: 2013
Language: eng
Abstract: This study introduces two physical effects known from beverages: the effect of sinking bubbles and the hot chocolate sound effect. The paper presents two simple „kitchen” experiments. The first and second effects are indicated by means of a flow visualization and microphone measurement, respectively. To quantify the second (acoustic) effect, sound records are analyzed using time-frequency signal processing, and the obtained power spectra and spectrograms are discussed.
Keywords: bubbles; hot chocolate effect; visualization
Project no.: GCP101/11/J019 (CEP)
Funding provider: GA ČR
Host item entry: Experimental Fluid Mechanics 2013, ISBN 978-80-260-5375-0

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0228818

Permalink: http://www.nusl.cz/ntk/nusl-170053


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Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers