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Novel high-performance element in the electromagnetic finite-element method — Node-edge element

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2 Author(s)
Xinqing, Sheng ; Center for Electromagnetic Simulation, School of Information Science and Technology, Beijing Inst. of Technology, Beijing 100081, P. R. China ; Zhen, Peng

It is known in the computational electromagnetics (CEM) that the node element has a relative well-conditioned matrix, but suffers from the spurious solution problem; whereas the edge element has no spurious solutions, but usually produces an ill-conditioned matrix. Particularly, when the mesh is over dense, the iterative solution of the matrix equation from edge element converges very slowly. Based on the node element and edge element, a node-edge element is presented, which has no spurious solutions and better-conditioned matrix. Numerical experiments demonstrate that the proposed node-edge element is more efficient than now-widely used edge element.

Published in:

Systems Engineering and Electronics, Journal of  (Volume:19 ,  Issue: 5 )