Show simple item record

dc.contributor.authorSaboohi, Zen_US
dc.contributor.authorOmmi, Fen_US
dc.contributor.authorFattahi, Aen_US
dc.contributor.authorKarimi, Nen_US
dc.date.accessioned2020-06-17T14:30:10Z
dc.date.available2020-05-11en_US
dc.date.issued2020-05-23en_US
dc.identifier.issn0035-3159en_US
dc.identifier.urihttps://qmro.qmul.ac.uk/xmlui/handle/123456789/65052
dc.description.abstractHot fluid pockets or hot spots can be found in many engineering systems, such as chemical reactors, internal heat engines and gas turbines. They are inherently fluid parcels with rapid temperature rising in comparison with the base medium and usually convect with the flow inertia. Due to the higher energy content, hot fluid pockets can change thermal characteristics of the system. Ignoring the destruction of them, which has been mainly missed in the literature, can therefore change the related predictions. The destruction of the hot fluid pockets is so investigated in this paper using a large eddy simulation and some statistical indices are used to reveal the coherence of the pockets. The results show that the convecting hot pocket can be significantly affected by hydrodynamic and thermal conditions, such that it may loss the initial tempo-spacial distribution completely. It is found that the hot spot behavior in lower Reynolds number range is not as regular as that at the higher Reynolds number range. Furthermore, the real thermal boundary conditions of convective heat transfer on the walls can completely change the destruction pattern in comparison to that in the adiabatic combustor. The extent of the destruction is various, depending on the flow conditions. The current results will help better prediction for systems involving hot fluid pockets.en_US
dc.publisherElsevieren_US
dc.relation.ispartofInternational Journal of Thermal Sciencesen_US
dc.rightshttps://doi.org/10.1016/j.ijthermalsci.2020.106475
dc.titleLarge eddy simulation of the destruction of convecting hot fluid pockets through a cold channel flowen_US
dc.typeArticle
dc.rights.holder© 2020 Elsevier Masson SAS
dc.identifier.doi10.1016/j.ijthermalsci.2020.106475en_US
pubs.notesNot knownen_US
pubs.publication-statusPublisheden_US
pubs.volume156en_US
dcterms.dateAccepted2020-05-11en_US
rioxxterms.funderDefault funderen_US
rioxxterms.identifier.projectDefault projecten_US
rioxxterms.funder.project483cf8e1-88a1-4b8b-aecb-8402672d45f8en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record