THMT-12. Proceedings of the Seventh International Symposium On Turbulence Heat and Mass Transfer
DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal
ISBN Print: 978-1-56700-302-4
ISSN: 2377-2816
Direct numerical simulation of particle transport by hairpin vortices in a laminar boundary layer
pages 632-643
DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.680
摘要
The interaction between solid particles and turbulentwall structures is studied here. This phenomenon is present in numerous environmental flows. The flow above a wall-mounted hemisphere is used for generating hairpin vortices in a controlled way. By means of direct numerical simulation (DNS) and simultaneous Lagrangian tracking of particles, the interaction between solid particles released in the wake of the obstacle and hairpin vortices is analysed.