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Study of flood protection measures in the Kroměříž locality
Skokan, Jiří ; Golík, Pavel (referee) ; Dráb, Aleš (advisor)
The diploma thesis deals with the design and hydraulic assessment of a dry retention reser-voir on the Kotojedka (IDVT 10202906) and Vážanský potok (IDVT 10189772) streams in Kroměříž. The basic designs of the dam parameters and the associated dry retention re-servoir flow control structure were carried out using hydraulic analytical calculations. A 1D hydrodynamic model was built by the author in the HEC-RAS software to assess the flow through this object. In the 1D analysis, some uncertainties could not be resolved, such as the formation and evolution of the hydraulic jump, the effect of the safety spillway and bottom outlet submergence, the capacity of the bottom outlet, the capacity of the apron and the water surface elevation in the apron. It can be assumed that, due to the lower significance of the proposed reservoir, it will not be subjected to research on the phy-sical model. Therefore, a hydraulic analysis with 3D numerical software comes into conside-ration, which in this case can provide results for the hydraulic design or optimisation of the desig-ned object parameters. Using the Flow - 3D hydrodynamic model, hydraulic calculations of water flow through the flow control object were performed. The results were compared with the values determined by the 1D model and analytical calculations. The results were compared in the selected profiles of the dry retention reservoir’s flow control object and the transformation effect of the reservoir.
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