Breaking antidunes: Cyclic behavior due to hysteresis

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

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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.
Original languageEnglish
JournalJournal of Hydraulic Engineering-asce
Volume132
Issue number6
Pages (from-to)620-623
ISSN0733-9429
StatePublished - 2006
Peer-reviewedYes

Keywords

  • alluvial streams, numerical models, sediment transport, transcritical flow, fluvial hydraulics, suspended load, bedforms
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