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Formulation and accuracy of On-Surface Radiation Conditions for acoustic multiple scattering problems

Author

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  • Alzubaidi, Hasan
  • Antoine, Xavier
  • Chniti, Chokri

Abstract

The aim of this paper is (1) to address an extension of the On-Surface Radiation Condition (OSRC) method to multiple scattering by a cluster of convex obstacles and (2) to analyze the numerical accuracy of the formulation for some model problems. First, the acoustic scattering problem is considered and materials about integral equations and OSRCs are recalled. Then, an OSRC integral equation formulation is developed for the Dirichlet multiple scattering problems. Finally, an extensive numerical study of the method is proposed in the special case of the scattering by circular cylinders. Even if this situation is not completely general, it provides an assessment of the accuracy of the approximation, with respect to various parameters, including thanks to the choice of the OSRC operators.

Suggested Citation

  • Alzubaidi, Hasan & Antoine, Xavier & Chniti, Chokri, 2016. "Formulation and accuracy of On-Surface Radiation Conditions for acoustic multiple scattering problems," Applied Mathematics and Computation, Elsevier, vol. 277(C), pages 82-100.
    • Handle: RePEc:eee:apmaco:v:277:y:2016:i:c:p:82-100
    DOI: 10.1016/j.amc.2015.12.023
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    Cited by:

    1. Saleh Mousa Alzahrani & Xavier Antoine & Chokri Chniti, 2021. "A Coupling between Integral Equations and On-Surface Radiation Conditions for Diffraction Problems by Non Convex Scatterers," Mathematics, MDPI, vol. 9(18), pages 1-13, September.

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