Analyzing numerical errors in domain heat transport models using the CVBEM

Journal of Offshore Mechanics and Arctic Engineering
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Abstract

Besides providing an exact solution for steady-state heat conduction processes (Laplace-Poisson equations), the CVBEM (complex variable boundary element method) can be used for the numerical error analysis of domain model solutions. For problems where soil-water phase change latent heat effects dominate the thermal regime, heat transport can be approximately modeled as a time-stepped steady-state condition in the thawed and frozen regions, respectively. The CVBEM provides an exact solution of the two-dimensional steady-state heat transport problem, and also provides the error in matching the prescribed boundary conditions by the development of a modeling error distribution or an approximate boundary generation. Consequently, this error evaluation can be used to develop highly accurate CVBEM models of the heat transport process, and the resulting model can be used as a test case for evaluating the precision of domain models based on finite elements or finite differences.

Publication type Article
Publication Subtype Journal Article
Title Analyzing numerical errors in domain heat transport models using the CVBEM
Series title Journal of Offshore Mechanics and Arctic Engineering
DOI 10.1115/1.3257005
Volume 109
Issue 2
Year Published 1987
Language English
Publisher ASME
Description 7 p.
First page 163
Last page 169
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