Particle dynamics in a viscous fluid under the action of acoustic radiation force

Hassan, Hassan K. and Ostrovsky, Lev A. and Stepanyants, Yury A. (2017) Particle dynamics in a viscous fluid under the action of acoustic radiation force. Interdisciplinary Journal of Discontinuity, Nonlinearity, and Complexity, 6 (3). pp. 317-327. ISSN 2164-6376


Complex dynamics of small particles under the action of acoustic radiation force is considered. This work extends the previous studies of Ostrovsky & Sarvazyan (2009) and Ostrovsky (2015) in two aspects. Firstly, here the particle material can have an arbitrary compressibility and sound speed. Secondly, in addition to the viscosity effect described by the Stokes drag force, the Boussinesq–Basset drag force and the inertial force which includes added mass effect are accounted for. Although, as was assumed in the earlier publications, the latter effects are usually small, however their influence can be noticeable in specific cases considered in this paper. The control of particle motion by switching of acoustic modes is also studied for particles of different properties. Quantitative estimates are given for particles made of different materials.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version cannot be displayed due to copyright restrictions.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences
Date Deposited: 11 Dec 2017 05:50
Last Modified: 24 Apr 2018 01:38
Uncontrolled Keywords: particle dynamics; viscous fluid; acoustic field; radiation force
Fields of Research : 02 Physical Sciences > 0203 Classical Physics > 020303 Fluid Physics
02 Physical Sciences > 0203 Classical Physics > 020301 Acoustics and Acoustical Devices; Waves
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Identification Number or DOI: 10.5890/DNC.2017.09.006

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