Breaking antidunes: Cyclic behavior due to hysteresis

Publication: Research - peer-reviewJournal article – Annual report year: 2006

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Breaking antidunes: Cyclic behavior due to hysteresis. / Deigaard, Rolf.

In: Journal of Hydraulic Engineering-asce, Vol. 132, No. 6, 2006, p. 620-623.

Publication: Research - peer-reviewJournal article – Annual report year: 2006

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Author

Deigaard, Rolf / Breaking antidunes: Cyclic behavior due to hysteresis.

In: Journal of Hydraulic Engineering-asce, Vol. 132, No. 6, 2006, p. 620-623.

Publication: Research - peer-reviewJournal article – Annual report year: 2006

Bibtex

@article{8fc9914dd737431481846d94d54db0c9,
title = "Breaking antidunes: Cyclic behavior due to hysteresis",
keywords = "alluvial streams, numerical models, sediment transport, transcritical flow, fluvial hydraulics, suspended load, bedforms",
author = "Rolf Deigaard",
year = "2006",
volume = "132",
pages = "620--623",
journal = "Journal of Hydraulic Engineering (Reston)",
issn = "0733-9429",
publisher = "American Society of Civil Engineers",
number = "6",

}

RIS

TY - JOUR

T1 - Breaking antidunes: Cyclic behavior due to hysteresis

AU - Deigaard,Rolf

PY - 2006

Y1 - 2006

N2 - The cyclic behavior of breaking antidunes (growth, breaking of surface wave, obliteration) is investigated by use of a numerical model. The model includes the transition between supercritical and transcritical flow. As the antidune grows the flow becomes transcritical and a hydraulic jump is formed upstream of the antidune crest. The relation between growth of the antidune and supercritical flow and between decay and transcritical flow is shown, and the significance of hysteresis in the flow conditions is investigated.

AB - The cyclic behavior of breaking antidunes (growth, breaking of surface wave, obliteration) is investigated by use of a numerical model. The model includes the transition between supercritical and transcritical flow. As the antidune grows the flow becomes transcritical and a hydraulic jump is formed upstream of the antidune crest. The relation between growth of the antidune and supercritical flow and between decay and transcritical flow is shown, and the significance of hysteresis in the flow conditions is investigated.

KW - alluvial streams

KW - numerical models

KW - sediment transport

KW - transcritical flow

KW - fluvial hydraulics

KW - suspended load

KW - bedforms

M3 - Journal article

VL - 132

SP - 620

EP - 623

JO - Journal of Hydraulic Engineering (Reston)

T2 - Journal of Hydraulic Engineering (Reston)

JF - Journal of Hydraulic Engineering (Reston)

SN - 0733-9429

IS - 6

ER -