Energy-Minimized High-Order Surface Meshes

Publikation: Beitrag in Buch/Konferenzbericht/Sammelband/GutachtenBeitrag in KonferenzbandBeigetragenBegutachtung

Beitragende

Abstract

The construction of suitable curvilinear meshes for high-order methods in computational fluid dynamics still remains a challenge. This paper investigates a strictly local construction and optimization method for high-order surface meshes. The optimization procedure combines fitting and minimization of energy functionals related to bending and stretching. The weight of the energy functionals in this combination is gradually reduced during the process by application of blending functions. We apply the method to analytically defined smooth surfaces as well as triangulated scanning data. For both classes of test cases the method improves the mesh quality notably and preserves the accuracy of least-squares fitting. Three different blending functions for the energy weighting have been investigated. Furthermore, we incorporated and tested methods to reduce the additional computational costs of performing the optimization.

Details

OriginalspracheEnglisch
TitelSpectral and High Order Methods for Partial Differential Equations ICOSAHOM 2016
Redakteure/-innenMarco L. Bittencourt, Ney A. Dumont, Jan S. Hesthaven
Seiten121-132
Seitenumfang12
ISBN (elektronisch)978-3-319-65870-4
PublikationsstatusVeröffentlicht - 2017
Peer-Review-StatusJa

Publikationsreihe

ReiheLecture Notes in Computational Science and Engineering
Band119
ISSN1439-7358

Konferenz

Titel11th International Conference on Spectral and High-Order Methods, ICOSAHOM 2016
Dauer27 Juni - 1 Juli 2016
StadtRio de Janeiro
LandBrasilien

Externe IDs

ORCID /0000-0002-6485-3825/work/193177023