Abstract
The population growth and GDP in India are at risk due to riverine flooding. Therefore, flood inundation map** is required to understand and manage the floodplain and mitigate the subsequent impacts of riverine flooding. The flood simulation models were developed to calculate the elevation of water surfaces that occur during a flood event. A one-dimensional (1D) or two-dimensional (2D) methodology was used in flood simulation models worldwide. HEC-RAS Version 5.0.3, published in 2015 by the US Army Corps of Engineering Hydrologic Engineering Center (HEC), conducts 1D steady and unsteady flow calculations as well as 2D unsteady flow calculations. In this study, the model is tested on the Great Krishna River flowing in Sangli city. Finally, the model results are assessed by developed inundation map**. The floodplain modeling based on a two-dimensional analysis is also investigated in this study.
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Acknowledgements
We would like to thank Google earth pro for the image of the Krishna river basin used in the present study. This work was carried out as a part of the project titled “Predictive Tool for Arctic Coastal Hydrodynamics and Sediment Transport” funded by the National Centre for Polar and Ocean Research (NCPOR). Authors also acknowledge support by SRIC, IIT Kharagpur, under the ISIRD project titled “3D CFD Modeling of the Hydrodynamics and Local Scour Around Offshore Structures Under Combined Action of Current and Waves.” We would also like to thank google earth pro.
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Kumar, L., Afzal, M., Chalwad, S. (2022). Flood Inundation Map** Using HEC-RAS 2D in Sangli City of Krishna River Basin, Maharashtra (India). In: Maiti, D.K., et al. Recent Advances in Computational and Experimental Mechanics, Vol II. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-16-6490-8_12
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