COUPLING BOUNDARY ELEMENT METHOD WITH LEVEL SET METHOD TO SOLVE INVERSE PROBLEM
Journal Title: Informatyka Automatyka Pomiary w Gospodarce i Ochronie Środowiska - Year 2017, Vol 7, Issue 1
Abstract
The boundary element method and the level set method can be used in order to solve the inverse problem for electric field. In this approach the adjoint equation arises in each iteration step. Results of the numerical calculations show that the boundary element method can be applied successfully to obtain approximate solution of the adjoint equation. The proposed solution algorithm is initialized by using topological sensitivity analysis. Shape derivatives and material derivatives have been incorporated with the level set method to investigate shape optimization problems. The shape derivative measures the sensitivity of boundary perturbations. The coupled algorithm is a relatively new procedure to overcome this problem. Experimental results have demonstrated the efficiency of the proposed approach to achieve the solution of the inverse problem.
Authors and Affiliations
Tomasz Rymarczyk, Paweł Tchórzewski, Jan Sikora
BADANIE PARAMETRÓW GLEBY Z TERENÓW PRZYWODNYCH
W artykule zaprezentowano wyniki badań próbek gleby z obszaru Podkarpacia pod kątem zawartości wybranych pierwiastków oraz jej składu procentowego. W badaniach wykorzystano zestawy testów kolorymetrycznych oraz spektrome...
KOMPUTEROWA SYMULACJA KOLUMNY DESTYLACYJNEJ Z AUTOMATYCZNYM STEROWANIEM
W artykule przedstawiono proces destylacji wykorzystywany przy produkcji etanolu. Opracowano model matematyczny określania i regulacji proporcji kolumny destylacyjnej i jego wpływ na stężenia i skład ilościowy zanie...
GENERALIZED APPROACH TO HURST EXPONENT ESTIMATING BY TIME SERIES
This paper presents a generalized approach to the fractal analysis of self-similar random processes by short time series. Several stages of the fractal analysis are proposed. Preliminary time series analysis includes the...
TWO-PHASE FLOW STRUCTURE IDENTIFICATION BASED ON FUZZY ASSESMENT OF 3D TOMOGRAPHICAL IMAGING
The following paper presents results of research on automated two-phase flow pattern identification, which is based on a fuzzy assessment of registered spatial images. Such images are obtained from 3D tomography reconstr...
MOBILE CLASS REGISTER AS AN EXAMPLE OF MOBILE WEB-APPLICATION
Nowadays mobile services are gaining more and more popularity. Users of new technologies expect to get information as quickly as possible. There is a need of providing them in an user-friendly way basing on mobile device...