Creating higher order vector shape functions based on H(curl) for the edge meshless method

Luilly A. G. Ortiz, Renato C. Mesquita and Naísses Z. Lima

Journal of Electromagnetic Waves and Applications, 2021, vol. 35, issue 11, 1511-1528

Abstract: The goal of this work is to extend the Edge Meshless Method (EMM) presenting a new way to build the vector shape functions based on the H(curl) space. These vector shape functions allow the use of four, five and six edges in the support domain. For this, the basis functions polynomial order is increased. The new EMM vector shape functions are applied to eigenvalues problems with different media. The numerical solution is not corrupted by spurious modes, field singularities generated by corners are correctly overcome and the continuity of tangential components across the interface between two different media is satisfied. The shape function with six edges in the support domain present the best results, where the majority of the eigenvalues double their convergence rate. Also, approximations of different polynomial orders can be used in the same problem.

Date: 2021
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DOI: 10.1080/09205071.2021.1901787

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