Volume 23, Number 1 (7-2004)                   jame 2004, 23(1): 123-145 | Back to browse issues page

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A. Ardeshir, F. Bahadori and A. Tahershamsi. Development of Semi-Tow-Dimensional SDAR Model for Bed Variation Simulation in Alluvial Rivers. jame. 2004; 23 (1) :123-145
URL: http://jame.iut.ac.ir/article-1-306-en.html

Abstract:   (1514 Views)
In this paper, development of a semi-two- dimensional mathematical model called SDAR is introduced. The model is composed of two principal modules of hydraulics and sediment transport. The newly developed SDAR model has a number of capabilities including determination of sediment transport rate, aggradation - degradation calculation, longitudinal profile and lateral cross–sectional variation simulation, and tracing armor layer development phenomena. SDAR is a semi- two dimensional ( S-2D) model, in the sense that the lateral variation of velocity, shear stress, and rate of sediment transport are achieved by subdividing the channel course into several stream tubes carrying equal discharges. Sediment routing and bed variation calculations are accomplished along each stream tube designated by virtual interfaces.
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Type of Study: Research | Subject: General
Received: 2014/10/25

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