The mechanism of generation of acoustic streaming

Acoustic streaming is a stationary fluid motion induced by intense ultrasound. This paper describes the mechanism of generation of acoustic streaming, theoretically and experimentally. A qualitative explanation in relation to acoustic radiation pressure is followed by a detailed discussion based on...

Full description

Saved in:
Bibliographic Details
Published in:Electronics & communications in Japan. Part 3, Fundamental electronic science Fundamental electronic science, 1998-10, Vol.81 (10), p.1-8
Main Author: Mitome, Hideto
Format: Article
Language:English
Subjects:
acoustic radiation pressure
acoustic streaming
development of flow
generation mechanism
nonlinear effect
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Acoustic streaming is a stationary fluid motion induced by intense ultrasound. This paper describes the mechanism of generation of acoustic streaming, theoretically and experimentally. A qualitative explanation in relation to acoustic radiation pressure is followed by a detailed discussion based on the formulation of the phenomenon. The spatial non‐uniformity of the sound field and energy dissipation due to viscosity are requisite for the generation of streaming. In the development of streaming, two kinds of nonlinearity are important: one is fluid‐dynamic nonlinearity, which accounts for effects of inertial force compared to viscous force in fluid motion, and the other is acoustic nonlinearity, which determines the driving force of streaming. © 1998 Scripta Technica, Electron Comm Jpn Pt 3, 81(10): 1–8, 1998
ISSN:1042-0967
1520-6440
DOI:10.1002/(SICI)1520-6440(199810)81:10<1::AID-ECJC1>3.0.CO;2-9