ANALYSIS OF HYDRODYNAMIC BEHAVIOUR OF BRAHMANI RIVER USING HEC-RAS

River also known as second mother resource of water present in the earth. Although water coming from ground and rain plays a vital role as main source of water but the role of rivers cannot be ignored. The distribution of water from main sources to sub channels is mostly carried by rivers. In India the behaviour of water flowing through the rivers are not constant as the rainfall depends on the continuously changing climate. Especially the rivers present in Odisha shows an uneven behaviour throughout the year. The present study represents the application of HEC RAS modelling for analysis of hydrodynamic behaviour of the river Brahmani. A particular station is chosen for case study known as Jenapur station. For this analysis, the river discharge data is used which is collected from CWC, DEM file from the Bhuvan site and land use and land cover using ARC GIS has been used. This analysis helps to indentify the profile like velocity profile, water surface profile, water depth, and inundation characteristic of water, energy line, and hydraulic gradient line, wetted perimeter both in tabular and graphical form. This study provides information to water resources engineers for constructing different hydraulic structures, water management, flood control and environmental planning