Journal article
Acoustic radiation force expressed using complex phase shifts and momentum-transfer cross sections
The Journal of the Acoustical Society of America, Vol.140(2), pp.EL178-EL183
08/2016
Handle:
https://hdl.handle.net/2376/117996
PMID: 27586777
Abstract
Acoustic radiation force is expressed using complex phase shifts of partial wave scattering functions and the momentum-transfer cross section, herein incorporated into acoustics from quantum mechanisms. Imaginary parts of the phase shifts represent dissipation in the object and/or in the boundary layer adjacent to the object. The formula simplifies the force as summation of functions of complex phase shifts of adjacent partial waves involving differences of real parts and sums of imaginary parts, providing an efficient way of exploring the force parameter-space. The formula for the force is proportional to a generalized momentum-transfer cross section for plane waves and no dissipation.
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Details
- Title
- Acoustic radiation force expressed using complex phase shifts and momentum-transfer cross sections
- Creators
- Likun Zhang - Department of Physics and Center for Nonlinear Dynamics, University of Texas at Austin, Austin, Texas 78712, USAPhilip L Marston - Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164-2814, USA lzhang@chaos.utexas.edu, marston@wsu.edu
- Publication Details
- The Journal of the Acoustical Society of America, Vol.140(2), pp.EL178-EL183
- Academic Unit
- Physics and Astronomy, Department of
- Publisher
- United States
- Identifiers
- 99900548295801842
- Language
- English
- Resource Type
- Journal article