Author(s): Qing Zhang; Gudrun Hillebrand; Na Klassen; Stefan Vollmer; Nils Reidar B. Olsen; Hans Moser; Reinhard Hinkelmann
Linked Author(s): Reinhard Hinkelmann, Gudrun Hillebrand, Nils Reidar B. Olsen
Keywords: 3D flow simulation; Iffezheim reservoir; SSIIM model; Sensitivity analysis
Abstract: The results of modeling in river engineering are an elementary prerequisite for river management, especially sediment transport, and are consequently of fundamental importance. Therefore, the aim of this paper is to analyze the flow field in the Iffezheim reservoir and to investigate the sensitivity of hydraulic and numerical parameters (e. g. time step, number of iterations, roughness and grid resolutions) on the results. This study will be the basis for a follow-up study on sediment transport in the Iffezheim reservoir. The simulations with the 3D SSIIM model are based on real-case data and the numerical results are compared with measurements in the range of available data. We have obtained an optimal time step and number of iterations concerning stability and CPU time, the grid resolution is discussed as well.
Year: 2013