Estudo comparativo das técnicas de elementos finitos e equação integral na modelagem eletromagnética bidimensional
The Finite Element and the Integral Equation numerical methods are commonly used in electromagnetic investigations in Geophysics. In those cases it is important to determine which algorithm is fastest for each geophysical model. In this work we compare computer times for two-dimensional modeling...
| Autor principal: | SILVA, Valdelírio da Silva e |
|---|---|
| Grau: | Dissertação |
| Idioma: | por |
| Publicado em: |
Universidade Federal do Pará
2014
|
| Assuntos: | |
| Acesso em linha: |
http://repositorio.ufpa.br/jspui/handle/2011/5441 |
| Resumo: |
|---|
|
The Finite Element and the Integral Equation numerical methods are commonly used
in electromagnetic investigations in Geophysics. In those cases it is important to determine
which algorithm is fastest for each geophysical model. In this work we compare computer
times for two-dimensional modeling with both methods. The models studied here are formed
by conductive rectangular bodies in a resistive half-space, energized by an infinite current
line located on the surface and parallel to the strike of the inhomogeneities. The currents in
all models operate in a frequency of 1000Hz. After validating and optimizing our codes, we
analyze the processing times for several models, varying the number of bodies, their sizes and
their tilt. We also investigated which parts of the programs demmand the greatest computer
times. We found that the Finite Element method performs faster than the Integral Equation
method in all models except those with low conductivity bodies or with inclined bodies. |