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Nonconforming Finite Element Methods for Wave Propagation in Metamaterials
Published online by Cambridge University Press: 20 February 2017
Abstract
In this paper, nonconforming mixed finite element method is proposed to simulate the wave propagation in metamaterials. The error estimate of the semi-discrete scheme is given by convergence order O(h2), which is less than 40 percent of the computational costs comparing with the same effect by using Nédélec-Raviart element. A Crank-Nicolson full discrete scheme is also presented with O(τ2 + h2) by traditional discrete formula without using penalty method. Numerical examples of 2D TE, TM cases and a famous re-focusing phenomena are shown to verify our theories.
- Type
- Research Article
- Information
- Numerical Mathematics: Theory, Methods and Applications , Volume 10 , Issue 1 , February 2017 , pp. 145 - 166
- Copyright
- Copyright © Global-Science Press 2017
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