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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Problémy konvergence při integrálním modelování 3D elektrostatických polí se singularitami
 Hamar, R. ; Doležel, Ivo
Numerous electrostatic fields are characterized by the presence of singularities (for example, at the corners or along the edges of electrically conductive charged bodies). Solutions to the tasks involving such elements by classic low-order differential methods often lead to inaccurate results. One of the prospective methods seems to be the integral approach starting from finding the distribution of the charge using the system of the first-kind Fredholm equations. The paper shows an application of this approach to two electrically conductive cubes in a general position in space. Discretization of their surfaces is performed in several different ways and the results are compared with respect to their convergence.
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Integral Solution of Electrostatic Fields in 3D Arrangements
 Hamar, R. ; Doležel, Ivo ; Ulrych, B.
The paper deals with computation of 3D electrostatic fields (distribution of charges, electric potential and other derived quantities) by means of integral equations and their numerical solution. Selected are neither configurations that can be simplified to 2D problems and solved analytically, nor arrangements that might be processed by the FD or FE techniques. Analysed are fundamental mathematical aspects of the method, which is illustrated on a 3D field between two cubes in general position.
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