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Integration of exponential expressions in natural co‐ordinates over finite elements
Author(s) -
Mohsen M. F. N.
Publication year - 1982
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620180912
Subject(s) - finite element method , exponential function , mathematics , mathematical analysis , mixed finite element method , ordinate , geometry , physics , thermodynamics
Expressions involving products of exponential functions and polynomials are encountered in the finite element formulation of the diffusion‐convection equation. Integrals of such expressions over finite elements are necessary to derive the element matrices. The derivation of the formula for such integrations is presented.