Numerical model of spherical particle saltation in a channel with a transversely tilted rough bed

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F09%3A00330620" target="_blank" >RIV/67985874:_____/09:00330620 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Numerical model of spherical particle saltation in a channel with a transversely tilted rough bed

Original language description

The paper deals with the spherical particle saltation in a channel with rough transversely tilted bed. Simulation is based on the 3D numerical model developed by the authors. It takes into account the translational and rotational particle motion. The stochastic method and the concept of a contact zone were used to determine a particle trajectory and its dependence on the bed lateral slope, particle diameter, and shear velocity. The effect of the bed lateral slope results in a deviation of the particle trajectory from the downstream direction. The particles trajectories were calculated and it was shown their random character. The centrelines of the bundle of trajectories can be approximated by the straight lines for low and moderate bed transverse slope. The deviation angle increases with increasing of the bed lateral slope, particle diameter and with decreasing the shear velocity. The particles can be sorted according to their size. An example of the particle sorting was calculated.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BK - Liquid mechanics

OECD FORD branch

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Project

<a href="/en/project/GA103%2F06%2F1487" target="_blank" >GA103/06/1487: Mathematical modelling and numerical simulation of the particle saltation in a channel</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Hydrology and Hydromechanics. Vodohospodársky časopis

ISSN

0042-790X

e-ISSN

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Volume of the periodical

57

Issue of the periodical within the volume

3

Country of publishing house

SK - SLOVAKIA

Number of pages

9

Pages from-to

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UT code for WoS article

000268906900005

EID of the result in the Scopus database

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