Determination of the viscous and thermal characteristic lengths of plastic foams by ultrasonic measurements in helium and air Article Swipe
Ph. Leclaire
,
Luc Kelders
,
Walter Lauriks
,
Manuel Melon
,
Niven R. Brown
,
Bernard Castagnède
·
YOU?
·
· 1996
· Open Access
·
· DOI: https://doi.org/10.1063/1.363817
YOU?
·
· 1996
· Open Access
·
· DOI: https://doi.org/10.1063/1.363817
The acoustic wave most commonly transmitted and detected in the high-porosity absorbent materials used in noise control is generally the air-borne slow compressional wave. In a new experiment, the air saturating the sample is replaced by helium and the transmission is studied at ultrasonic frequencies (70–600 kHz). The experiment is quite easily performed using standard ultrasonics and vacuum equipment. The main purpose of this work is to propose a method to determine simultaneously both the viscous and thermal characteristic lengths with the same precision. These two parameters characterize the viscous and the thermal interactions between the frame and the fluid at high frequencies. The characteristic lengths are deduced from the high-frequency asymptotic behavior of either the velocity or the attenuation curves obtained in the sample saturated by air and by helium. It also appears that due to the properties of helium, the discrepancy previously observed between predictions and measurements is shifted toward higher frequencies.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1063/1.363817
- OA Status
- green
- Cited By
- 154
- References
- 14
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W2047632916
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W2047632916Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.1063/1.363817Digital Object Identifier
- Title
-
Determination of the viscous and thermal characteristic lengths of plastic foams by ultrasonic measurements in helium and airWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
1996Year of publication
- Publication date
-
1996-08-15Full publication date if available
- Authors
-
Ph. Leclaire, Luc Kelders, Walter Lauriks, Manuel Melon, Niven R. Brown, Bernard CastagnèdeList of authors in order
- Landing page
-
https://doi.org/10.1063/1.363817Publisher landing page
- Open access
-
YesWhether a free full text is available
- OA status
-
greenOpen access status per OpenAlex
- OA URL
-
https://hal.science/hal-01326774Direct OA link when available
- Concepts
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Helium, Materials science, Attenuation, Thermal, Ultrasonic sensor, Porosity, Mechanics, Work (physics), Acoustics, Volume (thermodynamics), Optics, Composite material, Physics, Thermodynamics, Atomic physicsTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
154Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 9, 2024: 6, 2023: 4, 2022: 4, 2021: 9Per-year citation counts (last 5 years)
- References (count)
-
14Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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