Effective waves for random three-dimensional particulate materials
Effective waves for random three-dimensional particulate materials
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随机三维颗粒材料的有效波
DOI:
10.1088/1367-2630/abdfee
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发表时间:
2021
影响因子:
3.3
通讯作者:
Gower A
中科院分区:
文献类型:
--
作者:
Gower A
How do you take a reliable measurement of a material whose microstructure is random? When using wave scattering, the answer is often to take an ensemble average (average over time or space). By ensemble averaging we can calculate the average scattered wave and the effective wavenumber. To date, the literature has focused on calculating the effective wavenumber for a plate filled with particles. One clear unanswered question was how to extend this approach to a material of any geometry and for any source. For example, does the effective wavenumber depend on only the microstructure, or also on the material geometry? In this work, we demonstrate that the effective wavenumbers depend on only microstructure, though beyond the long wavelength limit there are multiple effective wavenumbers for one fixed incident frequency. We show how to calculate the average wave scattered from a random particulate material of any shape, and for broad frequency ranges. As an example, we show how to calculate the average wave scattered from a sphere filled with particles.
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影响因子:
2.4
作者:
J. Conoir
通讯作者:
J. Conoir
DOI:
10.1098/rspa.2019.0811
发表时间:
2020
期刊:
Proceedings of the Royal Society A
影响因子:
--
作者:
J. Willis
通讯作者:
J. Willis
DOI:
10.1209/0295-5075/122/54001
发表时间:
2018
期刊:
Europhysics Letters
影响因子:
--
作者:
A. Gower;R. Gower;J. Deakin;W. Parnell;I. David Abrahams
通讯作者:
I. David Abrahams
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
M. Chekroun;L. Marrec;B. Lombard;J. Piraux;O. Abraham
通讯作者:
O. Abraham
DOI:
10.1136/ebmh.11.4.102
发表时间:
2008-10
期刊:
Evidence Based Mental Health
影响因子:
--
作者:
P. Cochat;L. Vaucoret;J. Sarles
通讯作者:
P. Cochat;L. Vaucoret;J. Sarles