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Fully automatic hp-adaptivity for Maxwell's equations

机译:麦克斯韦方程式的全自动hp适应性

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I report on the development of a fully automatic hp-adaptive strategy for the solution of time-harmonic Maxwell equations. The strategy produces a sequence of grids that deliver exponential convergence for both regular and singular solutions. Given a (coarse) mesh, we refine it first globally in both h and p, and solve the problem on the resulting fine mesh. We consider then the projection-based interpolants of the fine mesh solution with respect to both current and next (to be determined) coarse grid, and introduce the interpolation error decrease rate equal to the difference of the old and new (coarse) mesh interpolation errors vs. number of degrees-of-freedom added. The optimal hp-refinements leading to the next coarse grid are then determined by maximizing the interpolation error decrease rate.
机译:我报告了一种用于时谐Maxwell方程组的全自动hp自适应策略的开发。该策略产生了一系列网格,可为常规和奇异解决方案提供指数收敛。给定一个(粗的)网格,我们首先在h和p中进行全局细化,然后在生成的精细网格上解决问题。然后我们考虑相对于当前和下一个(待确定)的粗网格的细网格解决方案基于投影的插值,并引入等于新旧(粗)网格插值误差之差的插值误差降低率vs.添加的自由度数。然后,通过使插值误差减少率最大化来确定导致下一个粗网格的最佳hp细化。

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