Numerical model of spherical particle saltation in a channel with a transversely tilted rough bed
Identifikátory výsledku
Kód výsledku v 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>
Výsledek na webu
—
DOI - Digital Object Identifier
—
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Numerical model of spherical particle saltation in a channel with a transversely tilted rough bed
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
Numerical model of spherical particle saltation in a channel with a transversely tilted rough bed
Popis výsledku anglicky
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.
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
BK - Mechanika tekutin
OECD FORD obor
—
Návaznosti výsledku
Projekt
<a href="/cs/project/GA103%2F06%2F1487" target="_blank" >GA103/06/1487: Matematické modelování a numerická simulace saltačního pohybu částice v kanále</a><br>
Návaznosti
Z - Vyzkumny zamer (s odkazem do CEZ)
Ostatní
Rok uplatnění
2009
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Hydrology and Hydromechanics. Vodohospodársky časopis
ISSN
0042-790X
e-ISSN
—
Svazek periodika
57
Číslo periodika v rámci svazku
3
Stát vydavatele periodika
SK - Slovenská republika
Počet stran výsledku
9
Strana od-do
—
Kód UT WoS článku
000268906900005
EID výsledku v databázi Scopus
—