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홈 > 학술정보 >학술행사 > 세미나
KAIST 수리과학과 세미나

Title
[응용수학 세미나] Acoustic Metamaterials in Moving Inhomogeneous Media
Speaker
전원주   (카이스트 기계공학과 )
Date
2017-11-28 14:00:00
Host
KAIST
Place
산업경영학동(E2) Room 2222
Abstract
During the past 10 years, most of acoustic metamaterial research has been done within a theoretical frame in which the medium is at rest. However, such acoustic metamaterials cannot preserve their unique properties or functions in the presence of ow. For example, the well-known acoustic cloak for a cylindrical object fails even at low subsonic flow. In a previous study, the wave operator couldn't take into account the effect of non-uniformity of the flow around the metamaterial as well as the density inhomogeneity due to the compressibility of fluid. Therefore, in this study, we propose a theoretical framework to consider the effect of non-uniform mean flow on acoustic metamaterials aiming at understanding the underlying physics and designing a new type of acoustic metamaterial.
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