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Comparing FEM with BEM
Zajíček, Vít ; Profant, Tomáš (referee) ; Návrat, Tomáš (advisor)
The thesis explores the possibilities of dealing with problems concerning Elasticity and Strength of materials. In first chapter there is general division of approaches to those problems. Following chapter describes basic principles of Finite Element Method and Boundary Element Method and their use in some simple examples. There is a comparison of those methods as well.
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Boundary element method for the solution of Helmholtz integral equation
Moses, Pavel
We apply boundary element method for the solution of Helmholtz integral equation, and we compute values of pressure, or its derivatives on the boundary. Solution at an arbitrary point near the barrier can be computed simply by substituting into the formula. Our method is demonstrated on an example of computeation of pressure field near a barrier of the type of unit circle for the case of excitation by a plane wave.
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Is this BEM useful for the computation of magnetic lenses?
Lencová, Bohumila
A new technique of boundary element method was proposed by Kasper in [1] under the title "An advanced boundary element method for the calculation of magnetic lenses"; see also the recent volume of AIEP [2]. What is new here? Obviously, for unsaturated lenses some of the formulas look a bit different than in [3] and the table in [1] is also different from that in [3].
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