Numerical modeling of Gauss monocycle pulse in transient acoustic field

• Autorzy: Koudela L. , Jansa J. , Karban P.
• Języki publikacji: EN

Abstrakty

EN

Numerical solution of acoustic wave equation in the time domain is performed. The 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 the Gauss monocycle pulse that proceeds from the signal source and incident on the semi-circular acoustic diffuser in a free field, realized by a fully adaptive higherorder finite element method implemented in codes Agros2D and Hermes developed by the hp-FEM group. Selected results of the computations are compared with the data obtained by the commercial code COMSOL Multiphysics.

Słowa kluczowe

EN

Gauss monocycle pulse; acoustic transient field; finite element method

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Computer Applications in Electrical Engineering
• Rocznik: 2013
• Tom: Vol. 11
• Strony: 141--147
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Koudela L.

• University of West Bohemia, 306 14 Plzen, Univerzitni 26

autor

Jansa J.

• University of West Bohemia, 306 14 Plzen, Univerzitni 26

autor

Karban P.

• University of West Bohemia, 306 14 Plzen, Univerzitni 26

Bibliografia

• [1] Cox J. T., P. D’Antonio, Acoustic Absorbers and Diffusers Theory. Design and Application, Taylor & Francis Group, 2009.
• [2] Rossing T. D., Springer Handbook of Acoustics. Springer Science + Business Media, LLC New York, 2007.
• [3] Solin P. et al, Hermes - Higher-order Modular Finite Element System, http://hpfem.org.
• [4] Karban P. et al, Agros2D - Multiplatform C++ Application for the Solution of PDEs, http ://agros2d.org.
• [5] COMSOL Multiphysics, http://www.comsol.com.