A Comparison Between FEM and FVM via the Method of Weighted Residuals

Document Type

Book Section

Publication Date

3-10-2020

Publication Title

50 Years of CFD in Engineering Sciences

Publisher

Springer

First page number:

753

Last page number:

777

Abstract

The Method of Weighted Residuals (MWR) is used to compare the finite element method (FEM) with the finite volume method (FVM) through nodal recursion relations. Both methods reside under the general MWR structure, with the underlying switch between the two methods established through the weighting function. Both methods yield comparable spatial accuracy for steady-state conditions. However, the flexibility of the FEM permits additional options that can increase accuracy, but generally at the expense of additional time and resource constraints.

Keywords

Finite element method; Finite volume method; Recursion relation

Disciplines

Engineering | Engineering Science and Materials

Language

English

UNLV article access

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