Autor: Walaszczyk, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The usage of the Trefftz method to determine the Biot number
Autorzy:: Maciąg, A.
Walaszczyk, M.
Powiązania:: https://bibliotekanauki.pl/articles/122658.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: Biot number
Trefftz functions
data disturbance
inverse problem
liczba Biota
metoda Trefftza
zagadnienie odwrotne
funkcje Trefftza
Opis:: The paper presents a method for determining the Biot number and the heat transfer coefficient based on the Trefftz functions. Firstly, the temperature distribution in the entire domain is calculated and then used for obtaining the heat transfer coefficient. The usefulness of the method is shown in the examples. The data for the examples are calculated by means of a known exact solution or they are given as measurements. The sensitivity of the presented method is checked. Test examples are used to check the method. Next, the heat transfer coefficient is determined for the real data for a rocket engine.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2017, 16, 4; 47-55
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: The usage of Trefftz functions and Picards iteration for solving different problems of a two-dimensional wave equation
Autorzy:: Krzyszkowska, P.
Maciąg, A.
Walaszczyk, M.
Powiązania:: https://bibliotekanauki.pl/articles/122544.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: wave equation
Trefftz functions
Picard's iteration
równanie falowe
funkcje Trefftza
iteracja Picarda
Opis:: The paper presents a method of solving two-dimensional wave equations which describe vibrations of the membrane with variable thickness and with damping. The differential operator is decomposed into two parts. The first one describes vibrations of the membrane with constant thickness without damping. The second contains the rest of the original operator and is treated as inhomogeneity for the first one. Picard’s iterations are used to calculate a successive approximation of the exact solution. Trefftz functions (wave polynomials) are used to solve the problem in each iteration. The presented examples show the usefulness of the method. The approach described in this paper can be used also for solving nonlinear problems for a wave equation.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2014, 13, 3; 129-140
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

Artykuł

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