Adaptive RBF-FD method for elliptic problems with point singularities in 2D

Dang Thi Oanh, Oleg Davydov and Hoang Xuan Phu

Applied Mathematics and Computation, 2017, vol. 313, issue C, 474-497

Abstract: We describe and test numerically an adaptive meshless generalized finite difference method based on radial basis functions that competes well with the finite element method on standard benchmark problems with reentrant corners of the boundary, sharp peaks and rapid oscillations in the neighborhood of an isolated point. This is achieved thanks to significant improvements introduced into the earlier algorithms of Davydov and Oanh (2011), including a new error indicator of Zienkiewicz–Zhu type.

Keywords: RBF-FD; Meshless methods; Generalized finite differences (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:apmaco:v:313:y:2017:i:c:p:474-497

DOI: 10.1016/j.amc.2017.06.006

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