Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Steady and Unsteady Hydrodynamic Simulation of Pili River as a Potential Flood Warning System Using HEC-RAS
In the present study, one-dimensional hydrodynamic simulation of the Pili River (Study Area) for the steady flow was carried out using ArcGIS and HEC-RAS considering floods of 5, 10, 25, 50 and 100 years return period under existing and modified river geometry. The results were transferred to Google Earth for the delineation of flood lines. Furthermore, one and two-dimensional unsteady-state simulations were carried out for floods of 25, 50 and 100 years return period using RAS Mapper, which provided a 2D visualization of the unsteady flow on Digital Elevation Model (DEM) and Google Earth. Validation of the model output results was carried out for the average dry weather flow, the depths of which were obtained from 14 different locations along the entire stretch of the study area. The validation results indicated the model having a correlation factor of 0.6447 with the actual on-site data obtained. Hence, the model was used to provide reliable information regarding the amount of submergence during an event of a flood. The flood lines obtained through the model will further help in providing a potential warning for floods and will also act as a guiding measure for the implementation of river training works such as dredging, slope stabilization and construction of levees for future riverbed planning and development activities along the river stretch.
Steady and Unsteady Hydrodynamic Simulation of Pili River as a Potential Flood Warning System Using HEC-RAS
In the present study, one-dimensional hydrodynamic simulation of the Pili River (Study Area) for the steady flow was carried out using ArcGIS and HEC-RAS considering floods of 5, 10, 25, 50 and 100 years return period under existing and modified river geometry. The results were transferred to Google Earth for the delineation of flood lines. Furthermore, one and two-dimensional unsteady-state simulations were carried out for floods of 25, 50 and 100 years return period using RAS Mapper, which provided a 2D visualization of the unsteady flow on Digital Elevation Model (DEM) and Google Earth. Validation of the model output results was carried out for the average dry weather flow, the depths of which were obtained from 14 different locations along the entire stretch of the study area. The validation results indicated the model having a correlation factor of 0.6447 with the actual on-site data obtained. Hence, the model was used to provide reliable information regarding the amount of submergence during an event of a flood. The flood lines obtained through the model will further help in providing a potential warning for floods and will also act as a guiding measure for the implementation of river training works such as dredging, slope stabilization and construction of levees for future riverbed planning and development activities along the river stretch.
Steady and Unsteady Hydrodynamic Simulation of Pili River as a Potential Flood Warning System Using HEC-RAS
Lecture Notes in Civil Engineering
Laishram, Boeing (Herausgeber:in) / Tawalare, Abhay (Herausgeber:in) / Dash, Siddhant (Autor:in) / Vijay, Ritesh (Autor:in) / Gupta, Rajesh (Autor:in)
International Conference on Advances in Civil Engineering ; 2020
15.12.2021
21 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
River flood warning system in Ukraine
| British Library Conference Proceedings | 1997
Hydrodynamic modelling in support of flash flood warning
| Online Contents | 2010
Unsteady Flood Modelling Using HEC-RAS: Chaliyar River Basin, Kerala
| Springer Verlag | 2023