EPJ Web of Conferences
Volume 67, 2014EFM13 – Experimental Fluid Mechanics 2013
|Number of page(s)||5|
|Published online||25 March 2014|
Bubble dynamics in drinks
1 Institute of Thermomechanics AS CR, 182 00 Prague, Czech Republic
2 CTU, Faculty of Mechanical Engineering, 166 07 Prague, Czech Republic
a Corresponding author: firstname.lastname@example.org
Published online: 25 March 2014
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.
© Owned by the authors, published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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