Unfitted Spectral Element Method for interfacial models

Bibliographic Details
Title: Unfitted Spectral Element Method for interfacial models
Authors: Gonzalez, Nicolas, Guo, Hailong, Yang, Xu
Publication Year: 2023
Collection: Computer Science
Mathematics
Subject Terms: Mathematics - Numerical Analysis
More Details: In this paper, we propose the unfitted spectral element method for solving elliptic interface and corresponding eigenvalue problems. The novelty of the proposed method lies in its combination of the spectral accuracy of the spectral element method and the flexibility of the unfitted Nitsche's method. We also use tailored ghost penalty terms to enhance its robustness. We establish optimal $hp$ convergence rates for both elliptic interface problems and interface eigenvalue problems. Additionally, we demonstrate spectral accuracy for model problems in terms of polynomial degree.
Comment: 21 pages
Document Type: Working Paper
Access URL: http://arxiv.org/abs/2309.17027
Accession Number: edsarx.2309.17027
Database: arXiv
More Details
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