Efficient finite element modeling of radiation forces on elastic particles of arbitrary size and geometry
Efficient finite element modeling of radiation forces on elastic particles of arbitrary size and geometry
A finite element based method is presented for calculating the acoustic radiation force on arbitrarily shaped elastic and fluid particles. Importantly for future applications, this development will permit the modeling of acoustic forces on complex structures such as biological cells, and the interactions between them and other bodies. The model is based on a non-viscous approximation, allowing the results from an efficient, numerical, linear scattering model to provide the basis for the second-order forces. Simulation times are of the order of a few seconds for an axi-symmetric structure. The model is verified against a range of existing analytical solutions (typical accuracy better than 0.1%), including those for cylinders, elastic spheres that are of significant size compared to the acoustic wavelength, and spheroidal particles.
acoustic wave scattering, elasticity, finite element analysis, nonlinear acoustics, radiation pressure
1885-1893
Glynne-Jones, Peter
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Mishra, Puja P.
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Boltryk, Rosemary J.
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Hill, Martyn
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April 2013
Glynne-Jones, Peter
6ca3fcbc-14db-4af9-83e2-cf7c8b91ef0d
Mishra, Puja P.
6d29eb14-97ef-46da-993b-09914a9cc429
Boltryk, Rosemary J.
0452b21c-a758-4d4a-925b-1511d9296d62
Hill, Martyn
0cda65c8-a70f-476f-b126-d2c4460a253e
Glynne-Jones, Peter, Mishra, Puja P., Boltryk, Rosemary J. and Hill, Martyn
(2013)
Efficient finite element modeling of radiation forces on elastic particles of arbitrary size and geometry.
Journal of the Acoustical Society of America, 133 (4), .
(doi:10.1121/1.4794393).
Abstract
A finite element based method is presented for calculating the acoustic radiation force on arbitrarily shaped elastic and fluid particles. Importantly for future applications, this development will permit the modeling of acoustic forces on complex structures such as biological cells, and the interactions between them and other bodies. The model is based on a non-viscous approximation, allowing the results from an efficient, numerical, linear scattering model to provide the basis for the second-order forces. Simulation times are of the order of a few seconds for an axi-symmetric structure. The model is verified against a range of existing analytical solutions (typical accuracy better than 0.1%), including those for cylinders, elastic spheres that are of significant size compared to the acoustic wavelength, and spheroidal particles.
Text
1 4794393.pdf
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More information
Published date: April 2013
Keywords:
acoustic wave scattering, elasticity, finite element analysis, nonlinear acoustics, radiation pressure
Organisations:
Mechatronics
Identifiers
Local EPrints ID: 351690
URI: http://eprints.soton.ac.uk/id/eprint/351690
ISSN: 0001-4966
PURE UUID: 635e1380-6251-47a3-bf07-1072fe17050b
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Date deposited: 30 Apr 2013 08:58
Last modified: 15 Mar 2024 03:03
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Contributors
Author:
Puja P. Mishra
Author:
Rosemary J. Boltryk
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