BIP! Finder - Influence of bubble size and thermal dissipation on compressive wave attenuation in liquid foams

2015 • Influence of bubble size and thermal dissipation on compressive wave attenuation in liquid foams

Authors: Monloubou, Martin; Saint-Jalmes, Arnaud; Dollet, Benjamin; Cantat, Isabelle

Venue: EPL (Europhysics Letters)

Type: Publication

Abstract: Acoustic or blast wave absorption by liquid foams is especially efficient and bubble size or liquid fraction optimization is an important challenge in this context. A resonant behavior of foams has recently been observed, but the main local dissipative process is still unknown. In this paper, we evidence the thermal origin of the dissipation, with an optimal bubble size close to the thermal boundary layer thickness. Using a shock tube, we produce typical pressure variation at time scales of the order of the millisecond, which propagates in the ... (read more)

Impact:

1.0307849E-9 3.0989982E-9 5 3

/ Attention: 0 22

Topics: Mechanics

DOI: 10.1209/0295-5075/112/34001

External links: Crossref OpenAIRE

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