• MURAHARIRAO PREMCHAND
• B.Appala Naidu

: HEC-RAS is software useful to do the 2D Flow Simulation. HEC-RAS is one of the simplest and oldest software for Simulation of River Flow. The Hydrologic Engineering Center’s River Analysis System (HEC-RAS) can be used in concert with HEC-GeoRAS to develop a dam failure model. HEC-GeoRAS is used to extract geometric information from a digital terrain model and then imported into HEC-RAS. Unsteady-flow simulation can be done using HEC-RAS. The two primary tasks in the hydraulic analysis of a dam breach are the prediction of the reservoir outflow hydrograph and the routing of that hydrograph through the downstream valley. There are many software’s are available for analysis among them HEC-RAS software is considered as best available method for present study. Present work is concentrated around Nagarjuna sagar dam which is located at latitude 15.7542° N, longitude 80.8972° E and at an elevation is about 73m (240 feet) above the mean sea level. 2D Flow Simulation for upstream side of the Nagarjuna sagar dam. The distances between two reservoirs are around 101 kilometers. Latitude and Longitude are calculated for every 250 meters for upstream side catchment area (i.e. from Srisailam dam to Nagarjuna sagar dam

HEC-RAS,2D Flow simulation, Outflow hydrograph

"2D FLOW SIMULATION FOR THE UPSTREAM SIDE OF NAGARJUNA SAGAR RESERVOIR USING HEC-RAS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.396-399, May-2019, Available :http://www.jetir.org/papers/JETIR1905K51.pdf

"2D FLOW SIMULATION FOR THE UPSTREAM SIDE OF NAGARJUNA SAGAR RESERVOIR USING HEC-RAS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp396-399, May-2019, Available at : http://www.jetir.org/papers/JETIR1905K51.pdf