Analysis of sediment particle velocity in wave motion based on wave flume experiments

• Autorzy: Krupiński A.
• Języki publikacji: EN

Abstrakty

EN

The experiment described was one of the elements of research into sediment transport conducted by the Division of Geotechnics of West-Pomeranian University of Technology. The experimental analyses were performed within the framework of the project "Building a knowledge transfer network on the directions and perspectives of developing wave laboratory and in situ research using innovative research equipment" launched by the Institute of Hydroengineering of the Polish Academy of Sciences in Gdańsk. The objective of the experiment was to determine relations between sediment transport and wave motion parameters and then use the obtained results to modify formulas defining sediment transport in rivers, like Ackers-White formula, by introducing basic parameters of wave motion as the force generating bed material transport. The article presents selected results of the experiment concerning sediment velocity field analysis conducted for different parameters of wave motion. The velocity vectors of particles suspended in water were measured with a Particle Image Velocimetry (PIV) apparatus registering suspended particles in a measurement flume by producing a series of laser pulses and analysing their displacement with a high-sensitivity camera connected to a computer. The article presents velocity fields of suspended bed material particles measured in the longitudinal section of the wave flume and their comparison with water velocity profiles calculated for the definite wave parameters. The results presented will be used in further research for relating parameters essential for the description of monochromatic wave motion to basic sediment transport parameters and "transforming" mean velocity and dynamic velocity in steady motion to mean wave front velocity and dynamic velocity in wave motion for a single wave.

Słowa kluczowe

EN

sediment transport; wave motion; rivers; wave flume

PL

ruch rumowiska; transport osadów; ruch falowy; kanał falowy; koryto falowe; rzeki

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2012
• Tom: Vol. 34, nr 2
• Strony: 41--50
• Opis fizyczny: Bibliogr. 6 poz., tab., rys.

Twórcy

autor

Krupiński A.

• West-Pomeranian University of Technology in Szczecin, Division of Geotechnics

Bibliografia

• [1] ACKERS P., WHITE W.R., Sediment transport, new approach and analysis, Journal of the Hydraulic Division ASCE, 1973, Vol. 99, No. HY11.
• [2] COUFAL R., Zmiany położenia dna w ujściowym odcinku rzeki wywołane ruchem rumowiska, Prace naukowe Politechniki Szczecińskiej, Katedra Geotechniki, Nr 515, Szczecin 1995.
• [3] CHYBICKI W., Teoria fal powierzchniowych w strefie zmiennej głębokości wody, Wydawnictwo IBW, PAN, Gdańsk 2006.
• [4] Prezentacje i materiały reklamowe dotyczące koryta falowego Zakładu Mechaniki Falowania i Dynamiki Budowli, IBW, PAN, Gdańsk.
• [5] OSTROWSKI R., Morphodynamics of a MultiBar Coastal Zone, Wydawnictwo IBW, PAN, Gdańsk, 2004.
• [6] KRUPIŃSKI A., Pomiary ruchu rumowiska w ruchu falowym na podstawie badań na kanale falowym, XIX Seminarium naukowe z cyklu Regionalne Problemy Ochrony Środowiska, Szczecin 2011.