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dc.contributor.authorShi, Zhaoyu
dc.contributor.authorJiang, Fengjian
dc.contributor.authorStrandenes, Håkon
dc.contributor.authorZhao, Lihao
dc.contributor.authorAndersson, Helge Ingolf
dc.identifier.citationInternational Journal of Multiphase Flow. 2020, 130 .en_US
dc.description.abstractThe inhomogeneous distributions of inertial particles in the unsteady flow around a wetted circular cylinder at Re=100 were investigated in one-way coupled three-dimensional numerical simulations. The Kármán vortex cells determine the local patterns of particle clustering. In the vicinity of the cylinder, a bow shock-like clustering was explored via Voronoï diagrams. The shape of the bow shock in terms of width and thickness strongly depends on Stokes number, Sk. For high-Sk particles, the bow shock was wider and less affected by the vortex shedding in the near wake and thus extended further downstream. We tracked low-Sk particles in a steady potential flow aimed at mimicking the viscous flow field close to the cylindrical surface. The converging tendency of the particle trajectories at the upstream of the cylinder supported the appearance of a bow shock. Furthermore, we analysed the trajectory of a Sk=0.1 particle in viscous flow, wherein the direction of the perpendicular component of the Stokes drag force was altered from outwards to inwards at the inflection point of the trajectory. This observation suggests that the centrifugal mechanism makes particle trajectories converge and thereby contributes to the formation of the bow shock.en_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleBow Shock Clustering in Particle-laden Wetted Cylinder Flowen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.source.journalInternational Journal of Multiphase Flowen_US
dc.relation.projectNotur/NorStore: nn2649ken_US
dc.relation.projectNotur/NorStore: nn9191ken_US
dc.description.localcodeThis is an open access article distributed under the terms of the Creative Commons CC-BY license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.en_US

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