Basset force in numerical models of saltation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F12%3A00385096" target="_blank" >RIV/67985874:_____/12:00385096 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.2478/v10098-012-0024-1" target="_blank" >http://dx.doi.org/10.2478/v10098-012-0024-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2478/v10098-012-0024-1" target="_blank" >10.2478/v10098-012-0024-1</a>

Result language

angličtina

Original language name

Basset force in numerical models of saltation

Original language description

In numerical models of fluid flow with particles moving close to solid boundaries, the Basset force is usually calculated for the particle motion between particle-boundary collisions. The present study shows that the history force must also be taken intoaccount regarding particle collisions with boundaries or with other particles. For saltation ? the main mode of bed load transport ? it is shown using calculations that two parts of the history force due to both particle motion in the fluid and to particle-bed collisions are comparable and substantially compensate one another. The calculations and comparison of the Basset force with other forces acting on a sand particle saltating in water flow are carried out for the different values of the transportstage. The conditions under which the Basset force can be neglected in numerical models of saltation are studied.

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%2F09%2F1718" target="_blank" >GA103/09/1718: Numerical model of the bed load transport of particle and cluster of particles under variable flow conditions in a channel</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

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

Name of the periodical

Journal of Hydrology and Hydromechanics

ISSN

0042-790X

e-ISSN

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Volume of the periodical

60

Issue of the periodical within the volume

4

Country of publishing house

SK - SLOVAKIA

Number of pages

11

Pages from-to

277-287

UT code for WoS article

000312915300006

EID of the result in the Scopus database

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