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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

The influence of the lift force on particle deposition in turbulent flows

pages 551-554
DOI: 10.1615/ICHMT.2015.THMT-15.1180
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RÉSUMÉ

We have studied the influence of the lift force on particle deposition in turbulent wall-bounded flows using the near-wall asymptotic solution of the kinetic equation for the particle PDF. This influence is significant since the wall-normal lift force decays linearly with the distance to the wall exceeding greatly the quadratically decaying wall-normal drag force. We derive the power-law dependence of the deposition velocity from Stokes number in the diffusion-impaction regime, which is in good agreement with experimental data. We have shown the crucial role of wall correction to the expressions for the drag and lift force for a correct prediction of particle deposition rate in the diffusion-impaction regime.

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