We discuss the scattering of acoustic and elastic waves from periodic arrays of aligned cylinders of arbitrary cross section, via the boundary element method. We introduce a novel means of calculating the quasi-periodic Greenâs function for the acoustic case, and the quasi-periodic Greenâs tensor for the elastodynamic problem. We also discuss the giant monopole resonance that arises for high contrast materials, and the effect of cavity shape on the size and frequency of the resonance.
| Date of Award | 31 Dec 2020 |
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| Original language | English |
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| Awarding Institution | - The University of Manchester
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| Supervisor | Ian Abrahams (Supervisor) & William Parnell (Supervisor) |
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- Green's functions
- waves
- BEM
- Scattering
- elasticity
- acoustics
Efficient numerical evaluation of the scattering of acoustic and elastic waves by arrays of cylinders of arbitrary cross section
Lynott, G. (Author). 31 Dec 2020
Student thesis: Phd