Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XI
Written by Adrian ROȘU, Maxim ARSENI, Bogdan ROȘU, Stefan-Mihai PETREA, Catalina ITICESCU, Puiu Lucian GEORGESCU
The paper aims to present the results of the influence of variation of Manning parameter in 1D water flow simulation on one of the most important channels in the Danube Delta, located in Tulcea county, Romania. The data used for the 1D simulations include water velocity, discharge, depths and was measured using the RiverSurveyor ADCP system in the summer of 2021, on the Magistral A.P. Chilia channel located in the north of the Danube Delta. The field data were collected in two measurement stations located along the Magistral A.P. Chilia channel. The uniflow cross-section model use Cross-Section Hydraulic Analyzer which is a model developed by the United States Department of Agriculture. All the simulations were performed using the unidirectional water flow model for the measured cross-sections by varying the manning parameter. The variation of the Manning parameter used in the simulations was based on the information found at the time of the field measurements and used according to other study findings. The results of the study show the importance of the Manning parameter in the 1D water flow simulation on medium channels, also underline the importance of water flow simulation regarding the water level regime that can have an important effect on channel morphology and also on the biodiversity of the area.
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