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Sound absorption of snow

 
: Maysenhölder, W.; Schneebeli, M.; Zhou, X.; Zhang, T.; Heggli, M.

:
Fulltext urn:nbn:de:0011-n-933262 (1.8 MByte PDF)
MD5 Fingerprint: af60b4b37c676b488ffb9c0b32fbd108
Created on: 17.4.2009


IBP-Mitteilung 35 (2008), No.486, 2 pp.
ISSN: 9990-1390
English
Journal Article, Electronic Publication
Fraunhofer IBP ()

Abstract
Recently fallen snow possesses good sound-absorbing properties. This fact is well-known and confirmed by measurements. Is the filigree structure of snowflakes decisive? In principle we know that the sound-absorbing capacity of a porous material is dependent on its structure. But until now the question as to which structural characteristics are significant has been insufficiently answered. Detailed investigations of snow are to explain this fact by precise measurements of the sound absorption, by tomographic recording of the structure and ba theoretical modeling of the acoustic processes.

: http://publica.fraunhofer.de/documents/N-93326.html