Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
An iterative solver for the 3D Helmholtz equation. / Belonosov, Mikhail; Dmitriev, Maxim; Kostin, Victor и др.
в: Journal of Computational Physics, Том 345, 15.09.2017, стр. 330-344.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - An iterative solver for the 3D Helmholtz equation
AU - Belonosov, Mikhail
AU - Dmitriev, Maxim
AU - Kostin, Victor
AU - Neklyudov, Dmitry
AU - Tcheverda, Vladimir
PY - 2017/9/15
Y1 - 2017/9/15
N2 - We develop a frequency–domain iterative solver for numerical simulation of acoustic waves in 3D heterogeneous media. It is based on the application of a unique preconditioner to the Helmholtz equation that ensures convergence for Krylov subspace iteration methods. Effective inversion of the preconditioner involves the Fast Fourier Transform (FFT) and numerical solution of a series of boundary value problems for ordinary differential equations. Matrix-by-vector multiplication for iterative inversion of the preconditioned matrix involves inversion of the preconditioner and pointwise multiplication of grid functions. Our solver has been verified by benchmarking against exact solutions and a time-domain solver.
AB - We develop a frequency–domain iterative solver for numerical simulation of acoustic waves in 3D heterogeneous media. It is based on the application of a unique preconditioner to the Helmholtz equation that ensures convergence for Krylov subspace iteration methods. Effective inversion of the preconditioner involves the Fast Fourier Transform (FFT) and numerical solution of a series of boundary value problems for ordinary differential equations. Matrix-by-vector multiplication for iterative inversion of the preconditioned matrix involves inversion of the preconditioner and pointwise multiplication of grid functions. Our solver has been verified by benchmarking against exact solutions and a time-domain solver.
KW - Acoustics
KW - Helmholtz equation
KW - Iterative methods
KW - Modeling
KW - Preconditioning
KW - DOMAIN
KW - PERFECTLY MATCHED LAYER
UR - http://www.scopus.com/inward/record.url?scp=85020027257&partnerID=8YFLogxK
U2 - 10.1016/j.jcp.2017.05.026
DO - 10.1016/j.jcp.2017.05.026
M3 - Article
AN - SCOPUS:85020027257
VL - 345
SP - 330
EP - 344
JO - Journal of Computational Physics
JF - Journal of Computational Physics
SN - 0021-9991
ER -
ID: 25775280