dc.contributor.author | Jayawickrama, Thamali R. | |
dc.contributor.author | Haugen, Nils Erland L | |
dc.contributor.author | Bäbler, Matthâus Ulrich | |
dc.contributor.author | Chishty, Muhammad Aqib | |
dc.contributor.author | Umeki, Kentaro | |
dc.date.accessioned | 2021-04-20T10:18:28Z | |
dc.date.available | 2021-04-20T10:18:28Z | |
dc.date.created | 2021-04-19T08:41:31Z | |
dc.date.issued | 2021 | |
dc.identifier.issn | 0301-9322 | |
dc.identifier.uri | https://hdl.handle.net/11250/2738603 | |
dc.description.abstract | A Stefan flow can be generated during a phase change or reactions of a particle immersed in a fluid. This study investigates the effect of Stefan flow on the exchange of momentum (drag coefficient (CD)) and heat transfer (Nusselt number (Nu)) between the particle and bulk-fluid. Fully resolved simulations were carried out for a flow near a spherical particle immersed in a uniform bulk flow. The immersed boundary method is used for implementing fluid-solid interactions and the particle is considered as a static boundary with fixed boundary conditions. In a non-isothermal flow, the changes in thermophysical properties at the boundary layer played a role in the variation of CD and Nu by a Stefan flow further. The previously developed model for the drag coefficient of a spherical particle in a uniform isothermal flow was modified for a uniform non-isothermal flow. The model is developed based on physical interpretation. A new model is developed for the Nusselt number for a spherical particle with a uniform Stefan flow combining available models in literature. The models are validated for Stefan Reynolds number −8⩽Resf,p⩽25 and particle Reynolds number of 2⩽Ref⩽30 in gas flow (i.e. Pr≈0.7). © 2021 The Author(s) | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | The effect of Stefan flow on Nusselt number and drag coefficient of spherical particles in non-isothermal gas flow | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.source.volume | 140 | en_US |
dc.source.journal | International Journal of Multiphase Flow | en_US |
dc.identifier.doi | https://doi.org/10.1016/j.ijmultiphaseflow.2021.103650 | |
dc.identifier.cristin | 1904972 | |
dc.relation.project | Notur/NorStore: NN9405K | en_US |
dc.relation.project | EC/H2020/764697 | en_US |
dc.relation.project | Norges forskningsråd: 267916 | en_US |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |