Engineering Mechanics

International Conference

Proceedings Vol. 13 (2007)


ENGINEERING MECHANICS 2007

NATIONAL CONFERENCE WITH INTERNATIONAL PARTICIPATION
May 14 – 17, 2007, Svratka, Czech Republic
;
Editors: Igor Zolotarev

Copyright © 2007 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

ISBN 978-80-87012-06-2 (printed)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

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NUMERICAL MODEL OF THE SPHERICAL PARTICLE SALTATION IN CHANNEL WITH TRANSVERSE TILTED ROUGH BED
Lukerchenko N., Piatsevich S., Chara Z., Vlasak P.
pages 163 - +8p., full text

The paper deals with 3D numerical model of the spherical particle saltation in the rectangular channel with rough bed and the effect of lateral slope of the bed. The stochastic method based on the concept of contact zone is used for the calculation of particle-bed collision. Some examples of calculation are presented, in particular, the lateral dispersions of the particles, which can be used for the particles sorting. The beams of the trajectories of particles starting their saltation from one point were calculated. It was found that the centrelines of the beams can be approximated by straight lines for low and moderate values of the bed transverse slope and the angles between centrelines and the stream direction depend on the lateral slope of the bed.


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