Abstract

Two approaches for formulating a computational Complex Variable Boundary Element Method (CVBEM) model are examined. In particular, this paper considers a collocation approach as well as a least squares approach. Both techniques are used to fit the CVBEM approximation function to given boundary conditions of benchmark boundary value problems (BVPs). Both modeling techniques provide satisfactory computational results, when applied to the demonstration problems, but differ in specific outcomes depending on the number of nodes used and the type of BVP being examined. Historically, the CVBEM has been implemented using the collocation approach. Therefore, the novelty of this work is in formulating the least squares approach and applying the least squares formulation to a Dirichlet BVP as well as a mixed BVP. This work does not claim that one technique should always be used over the other, but rather it seeks to demonstrate the viability of the least squares approach and assert that both techniques for determining the coefficients of the CVBEM approximation function should be considered during the modeling process.

Details

Title
A least squares approach for determining the coefficients of the CVBEM approximation function
Author
Wilkins, Bryce D; Hromadka, Theodore V, II
Pages
237-259
Publication year
2022
Publication date
Sep 27, 2022
Publisher
W I T Press
ISSN
20460546
e-ISSN
20460554
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2723884573
Copyright
© 2022. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the associated terms available at https://www.witpress.com/journals/cmem or in accordance with the terms at https://creativecommons.org/licenses/by/4.0/ (the “License”), if applicable