Acoustic Streaming near an Undulating Surface
نویسندگان
چکیده
منابع مشابه
Near-field acoustic streaming jet.
A numerical and experimental investigation of the acoustic streaming flow in the near field of a circular plane ultrasonic transducer in water is performed. The experimental domain is a parallelepipedic cavity delimited by absorbing walls to avoid acoustic reflection, with a top free surface. The flow velocities are measured by particle image velocimetry, leading to well-resolved velocity profi...
متن کاملAcoustic Determination of Near-surface Soil Properties
The state of the ground can change dramatically in response to changing meteorological influences and physical disturbances of the ground (e.g. tilling) that are important to many civilian and military activities. Permeability is the fundamental parameter of a porous media that controls whether a surface is an acoustically hard one, through which fluids may not easily penetrate, or conversely a...
متن کاملSeismo-acoustic signatures from near surface phenomena
Among numerous sources emitting pressure waves a few are known to generate acoustic signals both in the earth, as seismic waves, and in the atmosphere, as infrasound, which were recorded over large distances. Those sources are near surface phenomena like volcanic eruptions, explosions, and ocean waves, which all occur at the boundary between the solid earth and the atmosphere, either shallow ab...
متن کاملAcoustic streaming: an arbitrary Lagrangian-Eulerian perspective.
We analyse acoustic streaming flows using an arbitrary Lagrangian Eulerian (ALE) perspective. The formulation stems from an explicit separation of time scales resulting in two subproblems: a first-order problem, formulated in terms of the fluid displacement at the fast scale, and a second-order problem, formulated in terms of the Lagrangian flow velocity at the slow time scale. Following a rigo...
متن کاملZnO film thickness effect on surface acoustic wave modes and acoustic streaming
and acoustic streaming X. Y. Du, Y. Q. Fu, S. C. Tan, J. K. Luo, A. J. Flewitt, W. I. Milne, D. S. Lee, N. M. Park, J. Park, Y. J. Choi, S. H. Kim, and S. Maeng Centre for Advanced Photonics and Electronics, Department of Engineering, University of Cambridge, 9 JJ Thomson Ave, CB3 0FA, United Kingdom Electronics and Telecommunications Research institute (ETRI), 161 Gajeong-dong, Yuseong-gu, Dae...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1964
ISSN: 0001-4966
DOI: 10.1121/1.2143288