<div class="csl-bib-body">
<div class="csl-entry">Pons, M., Lucie, Rousseau, G., Adelerhof, H., Carde, B., Giesbergen, M., Fond, B., Borisov, S., & Blanckaert, K. (2025, May 1). <i>A numerical and experimental investigation of the influence of heat transfer boundary conditions on convective mixing</i> [Conference Presentation]. EGU General Assembly 2025, Wien, Austria. https://doi.org/10.5194/egusphere-egu25-4429</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/221067
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dc.description.abstract
Temperature-induced density variations within fluids drive gravity-driven flows. Such flows occur for example in geophysical processes such as differential cooling or stratification dynamics in lakes. Heat transfer through the boundaries, whether in a lake or in a laboratory flume, can impact flows. The objective of this study is to evaluate numerically and experimentally the effect of these boundary conditions on thermal convective mixing in two different configurations. The first configuration is the thermal convective mixing in a box of water with cooled boundaries. The second configuration is a lock exchange gravity flow.
Numerical simulations were performed using OpenFOAM with a Large Eddy Simulation solver and the Boussinesq approximation for density effects. The sensitivity of the solution to different boundary conditions for heat transfer were analyzed. Experiments rely on an innovative phosphor thermometry technique able to measure spatial patterns of fluid temperature instead of common pointwise measurements. Notably, we introduce a novel approach that combines the use of a laser sheet and high-resolution CMOS sensors operated in a multi gate accumulation mode to extract the temperature pattern.
The choice of appropriate parameters in the boundary condition enabled the accurate representation of the temperature evolution and convective flow patterns observed in the experiments.
en
dc.language.iso
en
-
dc.subject
Thermometry imaging
en
dc.title
A numerical and experimental investigation of the influence of heat transfer boundary conditions on convective mixing
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
Office National d'Études et de Recherches Aérospatiales, France
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dc.contributor.affiliation
Graz University of Technology, Austria
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dc.type.category
Conference Presentation
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tuw.researchTopic.id
E4
-
tuw.researchTopic.id
I8
-
tuw.researchTopic.name
Environmental Monitoring and Climate Adaptation
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tuw.researchTopic.name
Sensor Systems
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tuw.researchTopic.value
20
-
tuw.researchTopic.value
80
-
tuw.publication.orgunit
E222-01 - Forschungsbereich Wasserbau und Umwelthydraulik
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tuw.publisher.doi
10.5194/egusphere-egu25-4429
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tuw.author.orcid
0000-0001-9562-9255
-
tuw.author.orcid
0000-0002-8152-4126
-
tuw.author.orcid
0000-0002-6630-3683
-
tuw.event.name
EGU General Assembly 2025
en
tuw.event.startdate
27-04-2025
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tuw.event.enddate
02-05-2025
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tuw.event.online
Hybrid
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tuw.event.type
Event for scientific audience
-
tuw.event.place
Wien
-
tuw.event.country
AT
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tuw.event.presenter
Pons, Marianne, Lucie
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wb.sciencebranch
Bauingenieurwesen
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wb.sciencebranch
Umwelttechnik
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wb.sciencebranch.oefos
2011
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wb.sciencebranch.oefos
2071
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wb.sciencebranch.value
40
-
wb.sciencebranch.value
60
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item.openairetype
conference paper not in proceedings
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item.openairecristype
http://purl.org/coar/resource_type/c_18cp
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item.cerifentitytype
Publications
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item.languageiso639-1
en
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item.grantfulltext
none
-
item.fulltext
no Fulltext
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crisitem.author.dept
E222-01 - Forschungsbereich Wasserbau
-
crisitem.author.dept
E222-01 - Forschungsbereich Wasserbau
-
crisitem.author.dept
TU Wien
-
crisitem.author.dept
TU Wien
-
crisitem.author.dept
TU Wien
-
crisitem.author.dept
Université Paris-Saclay
-
crisitem.author.dept
Graz University of Technology, Austria
-
crisitem.author.dept
E222-01 - Forschungsbereich Wasserbau
-
crisitem.author.orcid
0000-0001-9562-9255
-
crisitem.author.orcid
0000-0002-8152-4126
-
crisitem.author.orcid
0000-0002-6630-3683
-
crisitem.author.parentorg
E222 - Institut für Wasserbau und Ingenieurhydrologie
-
crisitem.author.parentorg
E222 - Institut für Wasserbau und Ingenieurhydrologie
-
crisitem.author.parentorg
E222 - Institut für Wasserbau und Ingenieurhydrologie
