LOW-MOBILITY TRANSPORT OF COARSE-GRAINED BED MATERIAL

Jeroen van den Bos, Henk Jan Verhagen, Jelle Olthof

Abstract


The Paintal (1967) formula can be used to estimate transport rates of coarse-grained bed material (such as stones from a bed protection) under low hydraulic loads just above the threshold of motion; the application however is limited to steady currents. This paper presents research aimed at extending the range of application to a combination of regular non-breaking waves and a steady current.

Keywords


bed protections; transport; wave-current interaction; turbulence modeling

References


Bijker, E W (1967) Some considerations about scales for Coastal Models with Movable Bed, TH Delft, Delft, The Netherlands, PhD thesis

Bijman, W (2000) Transport van stortsteen door golven en stroming, TU Delft, Delft, The Netherlands, MSc thesis (in Dutch)

Bryman, A and Cramer, D (2005) Quantitative Data Analysis with SPSS 12 and 13, Routlegde, New York, USA

De Boer, G M (1998) Transport van stenen van een granulaire bodemverdediging, TU Delft, Delft, The Netherlands, MSc thesis (in Dutch)

Forschelen, P (1999) Transport van granulair bodemmateriaal. Een onderzoek naar transport bij lage hydraulische belasting, TU Delft, Delft, The Netherlands, MSc thesis (in Dutch)

Freds√łe, J (1984) 'Turbulent Boundary Layer in Wave-Current Motion', Journal of Hydraulic Engineering, Vol 110 (8), pp 1103-1120http://dx.doi.org/10.1061/(ASCE)0733-9429(1984)110:8(1103)

Grant, W D, and Madsen, O S (1979) 'Combined Wave and Current interaction with a Rough Bottom', Journal of Geophysical Research, Vol 84 no C4, pp 1797-1808 http://dx.doi.org/10.1029/JC084iC04p01797

Hofland, B (2005) Rock and roll; Turbulence-induced damage to granular bed protections, TU Delft, Delft, The Netherlands, PhD thesis

Jonsson, I G (1966) 'Wave boundary layers and friction factor', Proc 10th ICCE Tokyo, Vol 1 pp 127-148, ASCE, New York, USA

Mosselman, E, and Akkerman, G J (1998) Low-mobility transport of coarse-grained material, WL|Delft Hydraulics, Delft, The Netherlands, Tech. Rept. Q2395.40

Paintal, A P (1969) The probabilistic characteristics of bed load transport in alluvial channels, University of Minnesota, Minneapolis / Saint Paul, USA. Ph.D. thesis

Soulsby, R L, Hamm, L, Klopman, G, Myrhaug, D, Simons, R R and Thomas, G P (1993) 'Wavecurrent interaction within and outside the Bottom Boundary Layer', Coastal engineering, Vol 21, pp 41-69, Elsevier http://dx.doi.org/10.1016/0378-3839(93)90045-A

Souslby, R L (1997) Dynamics of Marine Sands, Thomas Telford Publications, London, UK

Van den Bos, J P (2006) Design of granular near-bed structures in waves and currents, TU Delft, Delft, The Netherlands, MSc thesis

Van Rijn, L C (1993) Principles of Sediment Transport in Rivers, Estuaries and Coastal Seas, Aqua Publications, Amsterdam, The Netherlands PMCid:1005200


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