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dc.contributor.authorLau, T.en
dc.contributor.authorNathan, G.en
dc.identifier.citationProceedings of the 7th Australian Conference on Laser Diagnostics in fluid mechanics and combustion, 2015 / pp.1-6en
dc.description.abstractThe effect of the particle Stokes number on the clustering of solid particles in the near field of a two-phase, turbulent, jet issuing from a long, round, pipe into a low velocity co-flow is investigated through the use of planar nephelometry and statistical box counting. The exit Stokes number was varied two orders of magnitude between 0:3 ≤ Sk0 ≤ 22:4, which resulted in a Reynolds number of 10;000 ≤ ReD ≤ 40; 000. The particle mass loading was fixed at ⏀ = 0:4, resulting in a flow that is in the two-way coupling regime. The results show that the phenomenon of particle clustering at the jet exit is significantly influenced by the exit Stokes number for 0:3 ≤ Sk0 ≤ 5:6. The degree of particle clustering was highest at the lowest investigated Stokes number, Sk0 = 0:3, and lowest for Sk0 > 5:6. Images of two-dimensional slices through three-dimensional clusters appeared as filament-like structures oriented at oblique angles across the jet, whose thickness increased with increasing Sk0. It is postulated that these clusters may be associated with persistent, large-scale streamwise structures that develop within the pipe and that turbophoresis augments particle clustering by causing the mean distribution of particles to be preferentially concentrated along the pipe boundary.en
dc.description.statementofresponsibilityTimothy C. W. Lau and Graham J. Nathanen
dc.publisherMonash University, Dept. of Mechanical Engineeringen
dc.rightsCopyright status unknownen
dc.titleThe influence of Stokes number on particle clustering within a two-phase turbulent jeten
dc.typeConference paperen
dc.contributor.conferenceAustralian Conference on Laser Diagnostics in fluid mechanics and combustion (ACLDFMC) (09 Dec 2015 - 11 Dec 2015 : Melbourne, Australia)en
pubs.library.collectionMechanical Engineering conference papersen
dc.identifier.orcidLau, T. [0000-0003-1851-706X]en
dc.identifier.orcidNathan, G. [0000-0002-6922-848X]en
Appears in Collections:Mechanical Engineering conference papers

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