REVIEW PAPER
PRIMARY ANALYSIS OF THE TRAJEKTORY OF FLOATING PARTICLES IN COMPOUND CHANNEL
Marcin Krukowski 1  
,  
 
 
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SGGW w Warszawie,
2
SGGW w Warszawie
CORRESPONDING AUTHOR
Marcin Krukowski   

SGGW w Warszawie,
Publication date: 2020-02-26
Submission date: 2019-11-13
Final revision date: 2019-11-23
Acceptance date: 2019-12-04
 
Acta Sci. Pol. Formatio Circumiectus 2019;18(4):37–47
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ABSTRACT
Hydraulic flow conditions in a multi-sectional trough cross-section, i.e. with a significantly changing depth along its width, are shaped by the various roughness of the bottom and slopes, as well as the exchange of water and momentum masses, between slower flowing water in shallower floodplain and faster flowing water in a deeper channel Main. The exchange of water momentum between flows in the main trough and floodplains, affects the nature of the flow and, consequently, affects the transport of masses of any admixtures in bipartite troughs (Knight et al. 1994, Rowiński et al. 2002, Sofialdis and Prinos 1999). Explanation of processes occurring during the flow of water in a channel with a complex cross section is possible by learning its kinematic and turbulent structure. One possible new method of visualizing flow in a channel with a complex cross-section is by introducing an indicator into the flow area, which quickly spreads to the entire area occupied by moving water, resulting in its homogeneous concentration. The rate of spread of the indicator depends on many factors, but the fundamental structure is the pulsation speed of water particles. The only way to describe turbulent flow is the statistical description, which hydrodynamic quantities occurring in it are random in time and space.
ISSN:1644-0765