Energy Stable Discontinuous Galerkin Finite Element Method for the Allen–Cahn Equation
Yazarlar (4)
Bülent Karasözen
Orta Doğu Teknik Üniversitesi, Türkiye
Prof. Dr. Murat UZUNCA Sinop Üniversitesi, Türkiye
Ayşe Sarıaydın Filibelioğlu
Van Yüzüncü Yıl Üniversitesi, Türkiye
Prof. Dr. Hamdullah Yücel Orta Doğu Teknik Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı International Journal of Computational Methods (Q2)
Dergi ISSN 0219-8762 Dergi Bilgileri (2018)
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 05-2018
Cilt / Sayı / Sayfa 15 / 3 / 1850013–0 DOI 10.1142/S0219876218500135
Makale Linki https://www.worldscientific.com/doi/abs/10.1142/S0219876218500135
UAK Araştırma Alanları
Uygulamalı Matematik
Özet
In this paper, we investigate numerical solution of Allen–Cahn equation with constant and degenerate mobility, and with polynomial and logarithmic energy functionals. We discretize the model equation by symmetric interior penalty Galerkin (SIPG) method in space, and by average vector field (AVF) method in time. We show that the energy stable AVF method as the time integrator for gradient systems like the Allen–Cahn equation satisfies the energy decreasing property for fully discrete scheme. Numerical results reveal that the discrete energy decreases monotonically, the phase separation and metastability phenomena can be observed, and the ripening time is detected correctly.
Anahtar Kelimeler
Allen-Cahn equation | discontinuous Galerkin method | gradient systems | time adaptivity | unconditional energy stability
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 20
Scopus 22
Google Scholar 25
Energy Stable Discontinuous Galerkin Finite Element Method for the Allen–Cahn Equation

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