<div class="csl-bib-body">
<div class="csl-entry">Boledi, L., Key, F., Terschanski, B., Elgeti, S., & Kowalski, J. (2023). A scale-coupled numerical method for transient close-contact melting. <i>Computers and Mathematics with Applications</i>, <i>143</i>, 277–288. https://doi.org/10.1016/j.camwa.2023.05.011</div>
</div>
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dc.identifier.issn
0898-1221
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/177321
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dc.description.abstract
We introduce a numerical workflow to model and simulate transient close-contact melting processes based on the space-time finite element method. That is, we aim at computing the velocity at which a forced heat source melts through a phase-change material. The driving application for this work consists in melting cryobots, namely research probes for ice drilling. Existing approaches found in the literature consider a thermo-mechanical equilibrium in the contact melt film, which results in a constant melting velocity of the heat source. This classical approach, however, cannot account for transient effects in which the melting velocity adjusts itself to equilibrium conditions. With our contribution, we derive a model for the transient melting process of a planar heat source. We iteratively cycle between solving for the heat equation in the solid material and updating the melting velocity. The latter is computed based on the heat flux in the vicinity of the heat source. The motion of the heated body is simulated via the moving mesh strategy referred to as the Virtual Region Shear-Slip Mesh Update Method, which avoids remeshing and is particularly efficient in representing unidirectional movement. We show numerical examples to validate our methodology and present two application scenarios, a 2D planar thermal melting probe and a 2D hot-wire cutting machine.
en
dc.language.iso
en
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dc.publisher
PERGAMON-ELSEVIER SCIENCE LTD
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dc.relation.ispartof
Computers and Mathematics with Applications
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dc.subject
Close-Contact Melting
en
dc.subject
Multiphysics
en
dc.subject
Scale Coupling
en
dc.subject
Moving Domain
en
dc.subject
Space-Time Finite Elements
en
dc.title
A scale-coupled numerical method for transient close-contact melting
en
dc.type
Article
en
dc.type
Artikel
de
dc.contributor.affiliation
RWTH Aachen University, Germany
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dc.contributor.affiliation
RWTH Aachen University, Germany
-
dc.contributor.affiliation
RWTH Aachen University, Germany
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dc.description.startpage
277
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dc.description.endpage
288
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dcterms.dateSubmitted
2022-10-31
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dc.type.category
Original Research Article
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tuw.container.volume
143
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tuw.journal.peerreviewed
true
-
tuw.peerreviewed
true
-
wb.publication.intCoWork
International Co-publication
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tuw.researchTopic.id
C2
-
tuw.researchTopic.id
C6
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tuw.researchTopic.name
Computational Fluid Dynamics
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tuw.researchTopic.name
Modeling and Simulation
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tuw.researchTopic.value
40
-
tuw.researchTopic.value
60
-
dcterms.isPartOf.title
Computers and Mathematics with Applications
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tuw.publication.orgunit
E317-01 - Forschungsbereich Leichtbau
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tuw.publisher.doi
10.1016/j.camwa.2023.05.011
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dc.date.onlinefirst
2023-05
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dc.identifier.eissn
1873-7668
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dc.description.numberOfPages
12
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tuw.author.orcid
0000-0003-0310-9389
-
tuw.author.orcid
0000-0001-6622-4806
-
tuw.author.orcid
0000-0002-4474-1666
-
wb.sci
true
-
wb.sciencebranch
Maschinenbau
-
wb.sciencebranch
Sonstige Technische Wissenschaften
-
wb.sciencebranch.oefos
2030
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wb.sciencebranch.oefos
2119
-
wb.sciencebranch.value
60
-
wb.sciencebranch.value
40
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item.languageiso639-1
en
-
item.cerifentitytype
Publications
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item.cerifentitytype
Publications
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item.fulltext
no Fulltext
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item.openairetype
Article
-
item.openairetype
Artikel
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item.openairecristype
http://purl.org/coar/resource_type/c_18cf
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item.openairecristype
http://purl.org/coar/resource_type/c_18cf
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item.grantfulltext
none
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crisitem.author.dept
RWTH Aachen University, Germany
-
crisitem.author.dept
E317-01 - Forschungsbereich Leichtbau
-
crisitem.author.dept
RWTH Aachen University, Germany
-
crisitem.author.dept
E317-01 - Forschungsbereich Leichtbau
-
crisitem.author.dept
RWTH Aachen University, Germany
-
crisitem.author.orcid
0000-0003-0310-9389
-
crisitem.author.orcid
0000-0001-6622-4806
-
crisitem.author.orcid
0000-0002-4474-1666
-
crisitem.author.parentorg
E317 - Institut für Leichtbau und Struktur-Biomechanik
-
crisitem.author.parentorg
E317 - Institut für Leichtbau und Struktur-Biomechanik