Engineering Mechanics

International Conference

Proceedings Vol. 14 (2008)


ENGINEERING MECHANICS 2008

NATIONAL CONFERENCE WITH INTERNATIONAL PARTICIPATION
May 12 – 15, 2008, Svratka, Czech Republic
;
Editors: Vladimír Fuis and Michal Pásek

Copyright © 2008 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

ISBN 978-80-87012-11-6 (printed)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

3D NUMERICAL MODEL OF AN ELLIPSOIDAL PARTICLE COLLISION WITH A ROUGH BED
Lukerchenko N., Piatsevich S., Chára Z., Vlasák P.
pages 146 - +10p., full text

The paper deals with 3D numerical model of an ellipsoidal particle collision with rough bed. The stochastic method of the contact point is based on the concept of contact zone. The translational and rotational particle motions are taken into account. The two – parameters (restitution and friction coefficients) system of the impulse equations are used. The dependences of values of the particle translational and angular velocities immediately after the collision on the values immediately before the collision are obtained for two collision patterns: impact with slip and impact without slip. The model can be used, particularly, as the part of the ellipsoidal particle saltation in channel with rough bed.


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Text and facts may be copied and used freely, but credit should be given to these Proceedings.

All papers were reviewed by members of the scientific committee.


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