Variability of wave-induced ripple migration in wave-flume experiments and its implications for sediment transport

被引：6

作者：

Yamaguchi, Naofumi ^{[1
]}

Sekiguchi, Hideo ^{[2
]}

机构：

[1] AIST, Geol Survey Japan, Tsukuba, Ibaraki 3058567, Japan

[2] Osaka City Univ, Grad Sch Sci, Sumiyoshi Ku, Osaka 5588585, Japan

来源：

COASTAL ENGINEERING | 2011年 / 58卷 / 08期

关键词：

Wave ripple migration; Sediment transport; Phase-lag effect; Oscillatory flow; Wave-flume experiment; FULL-SCALE RIPPLES; OSCILLATORY FLOWS; BEDFORM MIGRATION; SHEET FLOW; NEARSHORE;

D O I：

10.1016/j.coastaleng.2011.03.001

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A thorough discussion of results from laboratory experiments with regular waves sheds light on the gap that lies between the sediment transport associated with ripple migration and the performance of a standard bedload transport formula in terms of bed shear concept. It is found that the extent of deviations of the bedload transport formula by Ribberink (1998) from the measured rate of sediment transport associated with ripple migration becomes systematically apparent under conditions of increasing settling time factor Omega(s) (=eta/w(0)T); eta is the ripple height, w(0) the settling velocity and T the wave period). Re-examination of previous two field studies demonstrates a further reinforcement for phase-lag argument addressed in this paper. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：671 / 677

页数：7

共 22 条

[11] Meyer-Peter E., 1948, 2nd Meeting of the International Association for Hydraulic Structures Research, P39
[12] Sand motion induced by oscillatory flows: Sheet flow and vortex ripples
Ribberink, J. S.
van der Werf, J. J.
O'Donoghue, T.
Hassan, W. N. M.
[J]. JOURNAL OF TURBULENCE, 2008, 9 (20): : 1 - 32
[13] Bed-load transport for steady flows and unsteady oscillatory flows
Ribberink, JS
[J]. COASTAL ENGINEERING, 1998, 34 (1-2) : 59 - 82
[14] Effects of bed perturbation and velocity asymmetry on ripple initiation: wave-flume experiments
Sekiguchi, T
Sunamura, T
[J]. COASTAL ENGINEERING, 2004, 50 (04) : 231 - 239
[15] Sleath J.F. A., 1984, Sea bed mechanics
[16] SWART DH, 1974, P 14 INT C COAST ENG, P884
[17] Geometry, migration, and evolution of wave orbital ripples at LEO-15
Traykovski, P
Hay, AE
Irish, JD
Lynch, JF
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1999, 104 (C1) : 1505 - 1524
[18] Detailed measurements of velocities and suspended sand concentrations over full-scale ripples in regular oscillatory flow
van der Werf, J. J.
Doucette, J. S.
O'Donoghue, T.
Ribberink, J. S.
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE, 2007, 112 (F2)
[19] 2DV modelling of sediment transport processes over full-scale ripples in regular asymmetric oscillatory flow
van der Werf, J. J.
Magar, V.
Malarkey, J.
Guizien, K.
O'Donoghue, T.
[J]. CONTINENTAL SHELF RESEARCH, 2008, 28 (08) : 1040 - 1056
[20] Modelling and measurement of sand transport processes over full-scale ripples in oscillatory flow
van der Werf, Jebbe J.
Ribberink, Jan S.
O'Donoghue, Tom
Doucette, Jeffrey S.
[J]. COASTAL ENGINEERING, 2006, 53 (08) : 657 - 673

← 1 2 3 →