<div class="csl-bib-body">
<div class="csl-entry">Kaltenbacher, M., & Floss, S. (2018). Nonconforming Finite Elements Based on Nitsche-Type Mortaring for Inhomogeneous Wave Equation. <i>Journal of Theoretical and Computational Acoustics</i>, <i>26</i>(03), 1850028. https://doi.org/10.1142/s2591728518500287</div>
</div>
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dc.identifier.issn
2591-7285
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/145558
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dc.description.abstract
We propose the nonconforming Finite Element (FE) method based on Nitsche-type mortaring for
efficiently solving the inhomogeneous wave equation, where due to the change of material properties
the wavelength in the subdomains strongly differs. Therewith, we gain the flexibility to choose for
each subdomain an optimal grid. The proposed method fulfills the physical conditions along the
nonconforming interfaces, namely the continuity of the acoustic pressure and the normal component
of the acoustic particle velocity. We apply the nonconforming grid method to the computation of
transmission loss (TL) of an expansion chamber utilizing micro-perforated panels (MPPs), which
are modeled by a homogenization approach via a complex fluid. The results clearly demonstrate
the superiority of the nonconforming FE method over the standard FE method concerning preprocessing,
mesh generation flexibility and computational time.
en
dc.language.iso
en
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dc.publisher
World Scientific Publishing Co Pte Ltd
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dc.relation.ispartof
Journal of Theoretical and Computational Acoustics
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dc.subject
Computer Science Applications
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dc.subject
Applied Mathematics
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dc.subject
Acoustics and Ultrasonics
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dc.subject
Nonconforming finite elements
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dc.subject
Nitsche-type mortaring
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dc.subject
inhomogeneous wave equation
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dc.subject
micro-perforated panels.
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dc.title
Nonconforming Finite Elements Based on Nitsche-Type Mortaring for Inhomogeneous Wave Equation
en
dc.type
Artikel
de
dc.type
Article
en
dc.description.startpage
1850028
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dc.type.category
Original Research Article
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tuw.container.volume
26
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tuw.container.issue
03
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tuw.journal.peerreviewed
true
-
tuw.peerreviewed
true
-
tuw.publication.invited
invited
-
tuw.researchTopic.id
C6
-
tuw.researchTopic.id
C4
-
tuw.researchTopic.name
Modelling and Simulation
-
tuw.researchTopic.name
Mathematical and Algorithmic Foundations
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tuw.researchTopic.value
50
-
tuw.researchTopic.value
50
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dcterms.isPartOf.title
Journal of Theoretical and Computational Acoustics
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tuw.publication.orgunit
E325-03 - Forschungsbereich Messtechnik und Aktorik
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tuw.publisher.doi
10.1142/s2591728518500287
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dc.identifier.eissn
2591-7811
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dc.description.numberOfPages
18
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wb.sci
true
-
wb.sciencebranch
Maschinenbau
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wb.sciencebranch
Andere Naturwissenschaften
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wb.sciencebranch.oefos
2030
-
wb.sciencebranch.oefos
1070
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wb.facultyfocus
Numerische Ingenieursmethoden und IT gestütztes Engineering
de
wb.facultyfocus
Numerische Ingenieursmethoden und IT gestütztes Engineering