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THMT-15. Proceedings of the Eighth International Symposium On Turbulence Heat and Mass Transfer
September, 15-18, 2015, Sarajevo, Bosnia and Herzegovina

DOI: 10.1615/ICHMT.2015.THMT-15


ISBN Print: 978-1-56700-427-4

ISBN CD: 978-1-56700-428-8

Direct numerical simulation of the influence of Stokes number on velocity and particle concentration distributions in particle-laden round jets

pages 535-538
DOI: 10.1615/ICHMT.2015.THMT-15.1140
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SINOPSIS

Direct numerical simulations of a particle-laden turbulent round jet have been carried out for three different Stokes number (St = 0.3, 1.4, 11.2) in the two-way coupling regime. Efforts have been made to ensure that the initial conditions match well with recent experiments. The influence of stokes number on velocity and concentration distributions has been investigated. Comparison of results between the simulation and experimental data set indicates good general agreement. It is found that lighter particles exhibit small scale clustering already a few diameters downstream the jet orifice, whereas heavier particles do not get affected by the large scale ribs vortical structure of the jet and continue along their path as supplied by the injection velocity.

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