2015
DOI: 10.1137/140966290
|View full text |Cite
|
Sign up to set email alerts
|

High-Order Quadrature Methods for Implicitly Defined Surfaces and Volumes in Hyperrectangles

Abstract: Abstract. A high-order accurate numerical quadrature algorithm is presented for the evaluation of integrals over curved surfaces and volumes which are defined implicitly via a fixed isosurface of a given function restricted to a given hyperrectangle. By converting the implicitly defined geometry into the graph of an implicitly defined height function, the approach leads to a recursive algorithm on the number of spatial dimensions which requires only one-dimensional root finding and one-dimensional Gaussian qua… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1

Citation Types

0
146
0

Year Published

2016
2016
2024
2024

Publication Types

Select...
7

Relationship

0
7

Authors

Journals

citations
Cited by 138 publications
(146 citation statements)
references
References 32 publications
0
146
0
Order By: Relevance
“…On the one hand, both require special attention towards the numerical integration of elements cut by boundaries. In this context, a series of papers have recently highlighted the importance of geometrically faithful quadrature in embedded domain methods (see, for example, other studies [37][38][39][40][41][42][43] and the references therein).…”
mentioning
confidence: 99%
“…On the one hand, both require special attention towards the numerical integration of elements cut by boundaries. In this context, a series of papers have recently highlighted the importance of geometrically faithful quadrature in embedded domain methods (see, for example, other studies [37][38][39][40][41][42][43] and the references therein).…”
mentioning
confidence: 99%
“…For an extensive overview on quadrature methods for level sets respectively cut cells, we refer to our original work on HMF [5]. A rather new, alternative approach to quadrature on cut cells was proposed by Saye [27], who also demonstrated an XDG method for a Poisson problem with a jump at the interface.…”
Section: Motivation and Objectivesmentioning
confidence: 99%
“…We have implemented the Galerkin method for (26) for the linear case j(r, ψ(r, z)) = j(r, z) in CONCEPTS [9,27,34] (www.concepts.math.ethz.ch), using finite dimensional hp-FEM spaces V h,p for the approximations ψ h,p of ψ. CONCEPTS provides tensor product basis functions based on integrated Legendre polynomials on the reference square. We make use of CONCEPTS' ability to resolve arbitrary curved boundaries with known parametrization exactly in the mesh by transfinite interpolation techniques.…”
Section: 2mentioning
confidence: 99%
“…A non-exhaustive list of references about this topic is [7,22,10] and the many references therein. We also mention the more recent [26], [17] and [14] that address the issue of integrals over implicitly defined hypersurfaces as important ingredient of fictitious domain methods, unfitted finite element methods and numerical methods of partial differential equations on surfaces.…”
mentioning
confidence: 99%