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- W4251556073 abstract "The numerical and spectral performance of novel infinite elements for exterior problems of time-harmonic acoustics are examined. The formulation is based on a functional which provides a general framework for domain-based computation of exterior problems. Two prominent features simplify the task of discretization: the infinite elements mesh the interface only and need not match the finite elements on the interface. Various infinite element approximations for two-dimensional configurations with circular interfaces are reviewed. Numerical results demonstrate the good performance of these schemes. A simple study points to the proper interpretation of spectral results for the formulation. The spectral properties of these infinite elements are examined with a view to the representation of physics and efficient numerical solution. Copyright © 1999 John Wiley & Sons, Ltd." @default.
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- W4251556073 date "1999-10-10" @default.
- W4251556073 modified "2023-09-25" @default.
- W4251556073 title "Numerical and spectral investigations of Trefftz infinite elements" @default.
- W4251556073 doi "https://doi.org/10.1002/(sici)1097-0207(19991010)46:4<553::aid-nme688>3.3.co;2-f" @default.
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