Elastic immersive wave experimentation
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Date
2023-04
Publication Type
Journal Article
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yes
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Abstract
We describe an elastic wave propagation laboratory that enables a solid object to be artificially immersed within an extended (numerical) environment such that a physical wave propagation experiment carried out in the solid drives the propagation in the extended (numerical) environment and vice versa. The underlying method of elastic immersive wave experimentation for such a laboratory involves deploying arrays of active multicomponent sources at the traction-free surface of the solid (e.g. a cube of granitic rock). These sources are used to accomplish two tasks: (1) cancel outgoing waves and (2) emit ingoing waves representing the first-order interactions between the physical and extended domains, computed using, for example, a finite-difference (FD) method. Higher-order interactions can be built by alternately carrying out the processes for cancelling the outgoing waves and the FD simulations for generating the ingoing waves. We validate the proposed iterative scheme for realizing elastic immersive wave experimentation using 2-D synthetic wave experiments.
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published
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Journal / series
Volume
233 (1)
Pages / Article No.
724 - 739
Publisher
Wiley-Blackwell
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Subject
Numerical modelling; Numerical solutions; Body waves; Wave propagation; Wave scattering and diffraction; Wave propagation experiments; Internal absorbing boundaries
Organisational unit
03953 - Robertsson, Johan / Robertsson, Johan
Notes
Funding
694407 - MAchine for Time Reversal and Imersive wave eXperiments (EC)