Open Science Research Excellence
%0 Journal Article
%A Hamidreza Babaali and  Alireza Mojtahedi and  Nasim Soori and  Saba Soori
%D 2019 
%J  International Journal of Environmental and Ecological Engineering
%B World Academy of Science, Engineering and Technology
%I International Science Index 146, 2019
%T Numerical Modeling of Flow in USBR II Stilling Basin with End Adverse Slope
%U http://waset.org/publications/10010041
%V 146
%X Hydraulic jump is one of the effective ways of energy dissipation in stilling basins that the ‎energy is highly dissipated by jumping. Adverse slope surface at the end stilling basin is ‎caused to increase energy dissipation and stability of the hydraulic jump. In this study, the adverse slope ‎has been added to end of United States Bureau of Reclamation (USBR) II stilling basin in hydraulic model of Nazloochay dam with scale 1:40, and flow simulated into stilling basin using Flow-3D ‎software. The numerical model is verified by experimental data of water depth in ‎stilling basin. Then, the parameters of water level profile, Froude Number, pressure, air ‎entrainment and turbulent dissipation investigated for discharging 300 m3/s using K-Ɛ and Re-Normalization Group (RNG) turbulence ‎models. The results showed a good agreement between numerical and experimental model‎ as ‎numerical model can be used to optimize of stilling basins.‎

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