Journal of
Faculty of Civil Engineering

JOURNAL OF FACULTY OF CIVIL ENGINEERING
INTERNATIONAL CONFERENCE
CONTEMPORARY ACHIEVEMENTS IN CIVILENGINEERING 25, 2014.y., pp. 675-681

	DOI: 10.14415/konferencijaGFS2014.090
	UDC: 627.157:519.6
	CC-BY-SA 4.0 license
	Author : Horvat, Zoltan
	Summary:
	This work presents the development and calibration of a two dimensional sediment transport and bed evolution model for alluvial watercourses that uses the active-layer and multiple size-class approach. Sediment mixtures are represented through a suitable (unlimited) number of size-classes, which can be subject to either suspended-load or bed-load transport (or both), depending on local hydraulic conditions. The governing depth-averaged sediment transport equations are given in orthogonal curvilinear coordinates and solved using the fractional step method, which resulted in two successive steps (advection and diffusion). The developed model is assessed using field measurements conducted on the Danube River located in the border area between Hungary and Serbia. Analysis of the measured and computed values confirmed the developed model's reliability.
	Keywords:
	Numerical model, sediment transport equations, field measurements