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Statements

Subject Item
n2:RIV%2F61388998%3A_____%2F12%3A00379958%21RIV13-AV0-61388998
rdf:type
n4:Vysledek skos:Concept
dcterms:description
We present an experimental and theoretical analysis of the hot chocolate effect. The sound effect is evaluated using time-frequency signal processing, resulting in a quantitative visualization by spectrograms. This method allows us to capture the whole phenomenon, namely, to quantify the dynamics of the rising pitch. A general form of the time dependence volume fraction of the bubbles is proposed. We show that the effect occurs due to the nonlinear dependence of the speed of sound in the gas/liquid mixture on the volume fraction of the bubbles and the nonlinear time dependence of the volume fraction of the bubbles. We present an experimental and theoretical analysis of the hot chocolate effect. The sound effect is evaluated using time-frequency signal processing, resulting in a quantitative visualization by spectrograms. This method allows us to capture the whole phenomenon, namely, to quantify the dynamics of the rising pitch. A general form of the time dependence volume fraction of the bubbles is proposed. We show that the effect occurs due to the nonlinear dependence of the speed of sound in the gas/liquid mixture on the volume fraction of the bubbles and the nonlinear time dependence of the volume fraction of the bubbles.
dcterms:title
Visualization of the hot chocolate sound effect by spectrograms Visualization of the hot chocolate sound effect by spectrograms
skos:prefLabel
Visualization of the hot chocolate sound effect by spectrograms Visualization of the hot chocolate sound effect by spectrograms
skos:notation
RIV/61388998:_____/12:00379958!RIV13-AV0-61388998
n4:predkladatel
n5:ico%3A61388998
n6:aktivita
n14:P n14:Z
n6:aktivity
P(GCP101/11/J019), P(IAA200760801), Z(AV0Z20760514)
n6:cisloPeriodika
25
n6:dodaniDat
n18:2013
n6:domaciTvurceVysledku
n9:6671349 n9:7300913 n9:4143701 n9:6503039
n6:druhVysledku
n10:J
n6:duvernostUdaju
n16:S
n6:entitaPredkladatele
n20:predkladatel
n6:idSjednocenehoVysledku
177587
n6:idVysledku
RIV/61388998:_____/12:00379958
n6:jazykVysledku
n11:eng
n6:klicovaSlova
hot chocolate effect; gas-liquid mixture; speed of sound
n6:klicoveSlovo
n8:gas-liquid%20mixture n8:hot%20chocolate%20effect n8:speed%20of%20sound
n6:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n6:kontrolniKodProRIV
[049C2567B47B]
n6:nazevZdroje
Journal of Sound and Vibration
n6:obor
n19:BK
n6:pocetDomacichTvurcuVysledku
4
n6:pocetTvurcuVysledku
4
n6:projekt
n15:GCP101%2F11%2FJ019 n15:IAA200760801
n6:rokUplatneniVysledku
n18:2012
n6:svazekPeriodika
331
n6:tvurceVysledku
Fedorchenko, Alexander I. Hrubý, Jan Trávníček, Zdeněk Pavelka, Miroslav
n6:wos
000309296500001
n6:zamer
n17:AV0Z20760514
s:issn
0022-460X
s:numberOfPages
6
n13:doi
10.1016/j.jsv.2012.07.038