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Title: A Wave Based Method to predict the absorption, reflection and transmission coefficient of two-dimensional rigid frame porous structures with periodic inclusions
Authors: Deckers, Elke ×
Claeys, Claus
Atak, Onur
Groby, Jean-Philippe
Dazel, Olivier
Desmet, Wim #
Issue Date: 2016
Publisher: Academic Press
Series Title: Journal of Computational Physics vol:312 pages:115-138
Abstract: This paper presents an extension to the Wave Based Method to predict the absorption, reflection and transmission coefficients of a porous material with an embedded periodic set of inclusions. The porous unit cell is described using the Multi-Level methodology and by embedding Bloch-Floquet periodicity conditions in the weighted residual scheme.
The dynamic pressure field in the semi-infinite acoustic domains is approximated using a novel wave function set that
fulfills the Helmholtz equation, the Bloch-Floquet periodicity conditions and the Sommerfeld radiation condition. The method is meshless and computationally efficient, which makes it well suited for optimisation studies.
ISSN: 0021-9991
Publication status: accepted
KU Leuven publication type: IT
Appears in Collections:Production Engineering, Machine Design and Automation (PMA) Section
× corresponding author
# (joint) last author

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