𝔖 Bobbio Scriptorium
✦   LIBER   ✦

ANALYSIS OF A RIGID FRAME MODEL OF POROUS MEDIA FOR THE ACOUSTIC PROPERTIES OF DENSE SNOW

✍ Scribed by O. Marco; O. Buser; P. Villemain

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
262 KB
Volume
196
Category
Article
ISSN
0022-460X

No coin nor oath required. For personal study only.

✦ Synopsis

Acoustic impedances of dense snow samples have been measured with the two-microphone impedance measurement tube method developed by Chung and Blaser [1]. The parameters (h, k, R) of the rigid frame model proposed by Zwikker and Kosten [2] were used successfully by Buser [3] for rather light snow (r E 400 kg/m 3 ). However, for dense snow, the measurements indicate a great deviation from theory, especially for high frequencies. This difference is not reduced by using the new parameter lapp (apparent thermal conductivity) introduced by Zwikker and Kosten for a granular medium (see reference [2], pp. 25-48).

πŸ“œ SIMILAR VOLUMES

A 3-D HIERARCHICAL FE FORMULATION OF BIO
A 3-D HIERARCHICAL FE FORMULATION OF BIOT'S EQUATIONS FOR ELASTO-ACOUSTIC MODELLING OF POROUS MEDIA
✍ N.-E. HΓ–RLIN; M. NORDSTRΓ–M; P. GΓ–RANSSON πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 English βš– 371 KB

A three-dimensional hierarchical "nite element formulation of Biot's equation for low frequency elasto-acoustic wave propagation in #uid saturated porous media based on a weak formulation with #uid displacement and solid displacement as dependent variables is presented. A global error measure for ev

Use of specific Green's functions for so
Use of specific Green's functions for solving direct problems involving a heterogeneous rigid frame porous medium slab solicited by acoustic waves
✍ J.-P. Groby; L. De Ryck; P. Leclaire; A. Wirgin; W. Lauriks; R. P. Gilbert; Y. S πŸ“‚ Article πŸ“… 2006 πŸ› John Wiley and Sons 🌐 English βš– 493 KB

## Abstract A domain integral method employing a specific Green's function (i.e. incorporating some features of the global problem of wave propagation in an inhomogeneous medium) is developed for solving direct and inverse scattering problems relative to slab‐like macroscopically inhomogeneous poro