Motion of a density current head in a diverging channel.

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dc.contributor.authorPoudeh, H Torabien_US
dc.contributor.authorFathi-Moghadam, Men_US
dc.contributor.authorGhomesi, Men_US
dc.contributor.authorShafaei, Men_US
dc.date.accessioned2008-01-06en_US
dc.date.accessioned2009-06-02T05:19:29Z
dc.date.available2008-01-06en_US
dc.date.available2009-06-02T05:19:29Z
dc.date.issued2008-01-06en_US
dc.description.abstractVelocity of density current head in the diverging channel, where a river enters a dam reservoir, lake, or sea, is a key parameter when evaluating the extent to which suspended material travels, and determining the type and distribution of sediment in the reservoir. Effects of the channel degree of divergence on the density current head velocity were experimentally evaluated. Experiments were conducted in a 6.0m long and 0.72m wide flume at two slopes of 0.009 and 0.016. Head velocity was measured at three diverging degrees of 8, 12, 26, also in a uniform cross section channel 0.2m wide for various discharges. For the same slope and density current discharge, results showed that head velocity is higher in the diverging channels compared to that in the uniform cross section channel. As the channel degree of divergence was increased, the head velocity also increased. The increase of head velocity was insignificant beyond 12 degrees of divergence. In consent to the previous studies, the current head velocity increased as the bed slope increased. Using theory of dimensional analysis supported by experiments, a mathematical model was developed to calculate the head velocity for a variety of slopes and degrees of divergence.en_US
dc.description.affiliationSchool of Water Sciences Engineering, Shahid Chamran University, Ahvaz, Iran.en_US
dc.identifier.citationPoudeh HT, Fathi-Moghadam M, Ghomesi M, Shafaei M. Motion of a density current head in a diverging channel. Journal of Environmental Science & Engineering. 2008 Jan; 50(1): 63-8en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/114166
dc.language.isoengen_US
dc.source.urihttps://www.neeri.res.in/jese.htmlen_US
dc.subject.meshAluminum Silicatesen_US
dc.subject.meshEcosystemen_US
dc.subject.meshEnvironmenten_US
dc.subject.meshEquipment Designen_US
dc.subject.meshModels, Statisticalen_US
dc.subject.meshModels, Theoreticalen_US
dc.subject.meshMotionen_US
dc.subject.meshRiversen_US
dc.subject.meshSeawateren_US
dc.subject.meshWater Movementsen_US
dc.titleMotion of a density current head in a diverging channel.en_US
dc.typeJournal Articleen_US
dc.typeResearch Support, Non-U.S. Gov'ten_US
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