Source parameter inversion for wave energy focusing to a target inclusion embedded in a three-dimensional heterogeneous halfspace

Pranav M. Karve; Arash Fathi; Babak Poursartip; Loukas F. Kallivokas

doi:10.1002/nag.2662

Source parameter inversion for wave energy focusing to a target inclusion embedded in a three-dimensional heterogeneous halfspace

Pranav M. Karve, Arash Fathi, Babak Poursartip, Loukas F. Kallivokas

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

We discuss a methodology for computing the optimal spatio-temporal characteristics of surface wave sources necessary for delivering wave energy to a targeted subsurface formation. The wave stimulation is applied to the target formation to enhance the mobility of particles trapped in its pore space. We formulate the associated wave propagation problem for three-dimensional, heterogeneous, semi-infinite, elastic media. We use hybrid perfectly matched layers at the truncation boundaries of the computational domain to mimic the semi-infiniteness of the physical domain of interest. To recover the source parameters, we define an inverse source problem using the mathematical framework of constrained optimization and resolve it by employing a reduced-space approach. We report the results of our numerical experiments attesting to the methodology's ability to specify the spatio-temporal description of sources that maximize wave energy delivery. Copyright © 2016 John Wiley & Sons, Ltd.

Original language	English (US)
Pages (from-to)	1016-1037
Number of pages	22
Journal	International Journal for Numerical and Analytical Methods in Geomechanics
Volume	41
Issue number	7
DOIs	https://doi.org/10.1002/nag.2662
State	Published - Dec 28 2016
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The authors' research was partially supported by an Academic Excellence Alliance grant between the King Abdullah University of Science and Technology in Saudi Arabia (KAUST) and the University of Texas at Austin. This support is gratefully acknowledged.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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title = "Source parameter inversion for wave energy focusing to a target inclusion embedded in a three-dimensional heterogeneous halfspace",

abstract = "We discuss a methodology for computing the optimal spatio-temporal characteristics of surface wave sources necessary for delivering wave energy to a targeted subsurface formation. The wave stimulation is applied to the target formation to enhance the mobility of particles trapped in its pore space. We formulate the associated wave propagation problem for three-dimensional, heterogeneous, semi-infinite, elastic media. We use hybrid perfectly matched layers at the truncation boundaries of the computational domain to mimic the semi-infiniteness of the physical domain of interest. To recover the source parameters, we define an inverse source problem using the mathematical framework of constrained optimization and resolve it by employing a reduced-space approach. We report the results of our numerical experiments attesting to the methodology's ability to specify the spatio-temporal description of sources that maximize wave energy delivery. Copyright {\textcopyright} 2016 John Wiley & Sons, Ltd.",

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doi = "10.1002/nag.2662",

language = "English (US)",

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Source parameter inversion for wave energy focusing to a target inclusion embedded in a three-dimensional heterogeneous halfspace. / Karve, Pranav M.; Fathi, Arash; Poursartip, Babak et al.
In: International Journal for Numerical and Analytical Methods in Geomechanics, Vol. 41, No. 7, 28.12.2016, p. 1016-1037.

Research output: Contribution to journal › Article › peer-review

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AU - Karve, Pranav M.

AU - Fathi, Arash

AU - Poursartip, Babak

AU - Kallivokas, Loukas F.

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: The authors' research was partially supported by an Academic Excellence Alliance grant between the King Abdullah University of Science and Technology in Saudi Arabia (KAUST) and the University of Texas at Austin. This support is gratefully acknowledged. This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2016/12/28

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AB - We discuss a methodology for computing the optimal spatio-temporal characteristics of surface wave sources necessary for delivering wave energy to a targeted subsurface formation. The wave stimulation is applied to the target formation to enhance the mobility of particles trapped in its pore space. We formulate the associated wave propagation problem for three-dimensional, heterogeneous, semi-infinite, elastic media. We use hybrid perfectly matched layers at the truncation boundaries of the computational domain to mimic the semi-infiniteness of the physical domain of interest. To recover the source parameters, we define an inverse source problem using the mathematical framework of constrained optimization and resolve it by employing a reduced-space approach. We report the results of our numerical experiments attesting to the methodology's ability to specify the spatio-temporal description of sources that maximize wave energy delivery. Copyright © 2016 John Wiley & Sons, Ltd.

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Source parameter inversion for wave energy focusing to a target inclusion embedded in a three-dimensional heterogeneous halfspace

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