Special Issue "Research on Hydraulics and River Dynamics"
Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 8295
Interests: hydrology; hydraulics; hydraulic structures
Special Issues, Collections and Topics in MDPI journals
Special Issue in Land: Quantification of Soil Erosion and Sediment Transport in Basins
River engineering is one of the most important subjects in hydraulic engineering. The main scientific fields that are necessary for understanding the basic principles of river engineering include hydrology, hydraulics, and geomorphology. By means of the hydrologic rainfall–runoff models, the river inflows originating from rainfall-induced overland flow can be calculated. In the case of intense storms, the extreme situation of flood routing in rivers should be faced. Flood routing can be calculated by means of both hydrologic and hydraulic models. Hydraulic models are based on the water mass and momentum conservation equations, which are partial differential equations of hyperbolic type and are solved by means of numeric methods (e.g., finite difference schemes). Soil erosion products from the surrounding basins are transported by the overland flow into the rivers, and constitute the so-called wash load that is transported in the rivers in suspension. The river bed can be eroded by the river flow, or suspended sediment can be deposited on the river bed. So, the geomorphology of the river bed is strongly affected by the phenomenon of sediment transport. Numerous computational models for bed load and total load have been developed in the past. In order to account for the sediment transport in rivers, the sediment continuity equation should be added to water mass and momentum conservation equations. Sediment transport is mainly influenced by unsteady turbulent flows, which constitute the normal physical condition in rivers. Vegetation on river banks is also a physical element influencing the river flow. Especially in reservoirs and lakes, the hydraulic and geomorphologic conditions are different from those dominating in rivers. Generally, the hydraulic structures (e.g., dams) modify the hydraulic and geomorphologic regimes in rivers.
Emer. Prof. Vlassios Hrissanthou
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- River hydraulics
- Engineering hydrology
- River bed geomorphology
- Unsteady turbulent flow
- River bank vegetation
- Sediment transport
- Bed and bank erosion
- River bed deposition
- Hydraulic structures