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- W3113146395 abstract "Cavities are strong scattering parts for an aircraft. A discontinuous Galerkin (DG) method is presented to efficiently optimize cavity scattering. The DG method is shown to have ability of only remeshing the optimized parts and not remeshing the whole cavity in the computing process of scattering from the whole cavity. An effective and simple preconditioner, called distance sparse preconditioner (DSP), is applied to the DG method, different from the conventional block-diagonal preconditioner (BDP) and sparse approximate inverse preconditioner (SAI). The former one is usually recommended in the DG methods and the latter one is generally used in method of moment (MoM). Numerical results show that the DSP is more efficient than the BDP and SAI in the DG method for the cavity analysis. The effects of cavity opening shape, area, and transition shape are studied for scattering from cavities. Some interesting and useful numerical results are presented for cavity design." @default.
- W3113146395 created "2020-12-21" @default.
- W3113146395 creator A5004812439 @default.
- W3113146395 date "2021-02-01" @default.
- W3113146395 modified "2023-10-17" @default.
- W3113146395 title "An Efficient Discontinuous Galerkin Method for Cavity Design" @default.
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- W3113146395 doi "https://doi.org/10.1109/lawp.2020.3044198" @default.
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