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Wydawnictwo: Academic Journals Poznan University of Technology

Numer: 73/2013 Str: 155

Autorzy: Lukas Koudela, Jindrich Jansa, Pavel Karban

Tytuł: Numerical modeling of transient acoustic field using finite element methods

Streszczenie: Numerical solution of acoustic wave equation in the time domain is performed. The appropriate mathematical model is described by the partial differential wave equation supplemented with appropriate boundary conditions. The goal is to obtain the time evolution of the distribution of acoustic pressure, which can serve as the basis for the solution of various subsequent problems. The paper discusses the results of the numerical analysis of a semi-circular acoustic diffuser in a free field, realized by a fully adaptive higher-order finite element method implemented in our own codes Agros2D and Hermes. The results are compared with the data obtained by the commercial code Comsol Multiphysics.

Słowa kluczowe: finite element method, transient acoustic field, numerical modeling of acoustic wave