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Coupling of virtual element and boundary element methods for the solution of acoustic scattering problems

  • Gabriel N. Gatica EMAIL logo and Salim Meddahi

Abstract

This paper extends the applicability of the combined use of the virtual element method (VEM) and the boundary element method (BEM), recently introduced to solve the coupling of linear elliptic equations in divergence form with the Laplace equation, to the case of acoustic scattering problems in 2D and 3D. The well-posedness of the continuous and discrete formulations are established, and then Cea-type estimates and consequent rates of convergence are derived.

JEL Classification: 65N38; 65N99; 65N12; 65N15

Funding statement: This research was partially supported by ANID-Chile through the project Centro de Modelamiento Matemático (AFB170001) of the PIA Program: Concurso Apoyo a Centros Científicos y Tecnológicos de Excelencia con Financiamiento Basal; by Centro de Investigación en Ingeniería Matemática (CI2MA), Universidad de Concepción; and by Spain’s Ministry of Economy Project MTM2017-87162-P.

References

[1] B. Ahmad, A. Alsaedi, F. Brezzi, L. D. Marini, and A. Russo, Equivalent projectors for virtual element methods. Comput. Math. Appl. 66 (2013), No. 3, 376–391.10.1016/j.camwa.2013.05.015Search in Google Scholar

[2] L. Beirão da Veiga, F. Brezzi, L. D. Marini, and A. Russo, Virtual element method for general second-order elliptic problems on polygonal meshes. Math. Models Methods Appl. Sci. 26 (2016), No. 4, 729–750.10.1142/S0218202516500160Search in Google Scholar

[3] S. C. Brenner, Q. Guan, and L. Y. Sung, Some estimates for virtual element methods. Comput. Methods Appl. Math. 17 (2017), No. 4, 553–574.10.1515/cmam-2017-0008Search in Google Scholar

[4] D. D. Colton and R. Kress, Inverse Acoustic and Electromagnetic Scattering Theory Second edition. Applied Mathematical Sciences, Vol. 93. Springer-Verlag, Berlin, 1998.10.1007/978-3-662-03537-5Search in Google Scholar

[5] M. Costabel, Symmetric methods for the coupling of finite elements and boundary elements. In: Boundary Elements IX (Eds. C. A. Brebbia, G. Kuhn, and W. L. Wendland), Springer, Berlin, pp. 411–420, (1987).Search in Google Scholar

[6] T. Dupont and R. Scott, Polynomial approximation of functions in Sobolev spaces, Math. Comp. 34 (1980), No. 150, 441–463.10.1090/S0025-5718-1980-0559195-7Search in Google Scholar

[7] G. N. Gatica, A. Márquez, and S. Meddahi, A virtual marriage a la mode: some recent results on the coupling of VEM and BEM. In: The Virtual Element Method and its Applications (Eds. P. Antonietti, L. Beirao da Veiga, and G. Manzini). SEMA-SIMA Springer series, to appear.Search in Google Scholar

[8] G. N. Gatica and S. Meddahi, On the coupling of VEM and BEM in two and three dimensions. SIAM J. Numer. Anal. 57 (2019), No. 6, 2493–2518.10.1137/18M1202487Search in Google Scholar

[9] G. N. Gatica and S. Meddahi, Coupling of virtual element and boundary element methods for the solution of acoustic scattering problems. Preprint 2019-22 Centro de Investigación en Ingeniería Matemática, Universidad de Concepción, Concepción, Chile, 2019.Search in Google Scholar

[10] H. Han, A new class of variational formulations for the coupling of finite and boundary element methods. J. Comput. Math. 8 (1990), No. 3, 223–232.Search in Google Scholar

[11] A. Kirsch, An Introduction to the Mathematical Theory of Inverse Problems Springer-Verlag, New York, 1996.10.1007/978-1-4612-5338-9Search in Google Scholar

[12] W. McLean, Strongly Elliptic Systems and Boundary Integral Equations Cambridge University Press, Cambridge, 2000.Search in Google Scholar

[13] S. Meddahi, A. Márquez, and V. Selgas, Computing acoustic waves in an inhomogeneous medium of the plane by a coupling of spectral and finite elements. SIAM J. Numer. Anal. 41 (2003), No. 5, 1729–1750.10.1137/S0036142902406624Search in Google Scholar

[14] P. Monk, Finite Element Methods for Maxwell’s Equations Oxford University Press, New York, 2003.10.1093/acprof:oso/9780198508885.001.0001Search in Google Scholar

[15] S. A. Sauter and C. Schwab, Boundary Element Methods Springer Series in Computational Mathematics, Vol. 39. Springer-Verlag, Berlin, 2011.10.1007/978-3-540-68093-2Search in Google Scholar

Received: 2019-07-12
Revised: 2020-04-18
Accepted: 2020-04-28
Published Online: 2020-12-11
Published in Print: 2020-12-16

© 2020 Walter de Gruyter GmbH, Berlin/Boston

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