Domain Integral Reduction In BEM: The Foundations
Author(s)
D. W. Nicholson, A. J. Kassab & I. lonescu
Abstract
Domain integral reduction in BEM: the
foundations
D. W. Nicholson*, A. J. Kassab^&I. lonescu*
Department of Mechanical Materials and Aerospace
Engineering, University of Central Florida, Orlando, Fl
Abstract
Foundations of a new BEM algorithm, called Domain Integral Reduc-
tion (DIRA), are discussed. DIRA concerns situations in which an exact
fundamental solution is not available, for example in many nonlinear,
inhomogeneous and dynamic problems. Commonly, an approximate
fundamental solution is used from, say, a corresponding linear,
homogeneous or static problem. Doing so gives rise to a residual
domain integral at variance with the boundary-only character of BEM.
Current methods for domain integrals include Dual Reciprocity
Algorithms, domain cells, and Monte Carlo integration methods, all
involving calculations at points throughout the domain. Some
dependence of accuracy and efficiency is expected on the number and
positions of the internal points. DIRA exp
Keywords
Related Book
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