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Ultrasonic characterisation of porous materials, by Philippe Leclaire (University of Burgundy) Dec. 4, 2017
DENORMS Action's Training School "Experimental techniques for acoustic porous materials and metamaterials", Le Mans, 4-6th December 2017
Programme of the Training School
Lecturer: Philippe Leclaire (University of Burgundy)
Abstract:
Acoustic models of the acoustics of porous and perforated media involve a set of physical parameters. Some of the parameters, the tortusity, the viscous and thermal characteristic lengths are defined for a perfect incompressible and inviscid fluid saturating the porous medium. It is shown that ultrasonic propagation in air-saturated materials can be used to determine these parameters. A basic method involving air-coupled ultrasonic transducers is presented. Variants of this method and a practical implementation of one of these is proposed.
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Jean-Philippe Groby
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- Duration : 01:37:45
- Number of view(s) : 64
- Type : education 470
- Discipline : Acoustique 149 Mécanique 163 Méthodes de l’ingénieur 63 Physique 69
- Updated on Jan. 5, 2018
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Contributor(s): writers, directors, editors, designers… :
- RASERA Pauline (editor)
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