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  4. A Rescaled Localized Radial Basis Function Interpolation On Non-Cartesian And Nonconforming Grids
 
research article

A Rescaled Localized Radial Basis Function Interpolation On Non-Cartesian And Nonconforming Grids

Deparis, Simone  
•
Forti, Davide  
•
Quarteroni, Alfio  
2014
Siam Journal On Scientific Computing

In this paper we propose a rescaled localized radial basis function (RL-RBF) interpolation method, based on the use of compactly supported radial basis functions. Starting from the classical RBF interpolation technique, we introduce a rescaling that allows for exact interpolation of constant fields between nonconforming meshes without the use of an extra polynomial term. We also present two-dimensional and three-dimensional numerical examples on arbitrary finite element meshes to show that the RL-RBF interpolation leads to accurate results, fast evaluation, and easy parallelization of the algorithm. All the computations are carried out using the open source finite element library LifeV.

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Type
research article
DOI
10.1137/130947179
Web of Science ID

WOS:000346838800011

Author(s)
Deparis, Simone  
•
Forti, Davide  
•
Quarteroni, Alfio  
Date Issued

2014

Publisher

Siam Publications

Published in
Siam Journal On Scientific Computing
Volume

36

Issue

6

Start page

A2745

End page

A2762

Subjects

compactly supported radial basis functions

•

interpolation

•

nonconforming meshes

•

parallel algorithms

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
CMCS  
SCI-SB-SD  
Available on Infoscience
February 20, 2015
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/111176
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