Numerical Simulation of Velocity Distribution in the River Lateral Intake Using the SSIIM2 Numerical Model

Yıl 2015, Cilt: 36 Sayı: 3, 1473 - 1486, 13.05.2015

Edris Merufınıa Adel Asnaasharı

Öz

Abstract.     Intakes are generally used in water distribution networks, irrigation channels, sewage networks, water, and wastewater treatment facilities as an input to power utilities, and so on. Due to the flow complexity and also the Effects of scale, physical models can not solely provide a clear perception of the physics governing the flow field and it is necessary to study this phenomenon numerically along with field and Experimental studies. In the first section of this study, the numerical simulation of flow   has been performed in the direct path of rectangular channel by Using SSIIM2 software. This software solves Navier-Stokes equations by Finite-Volume Method (FVM). The flow calculations were performed in the three dimensional model using K-ε-RNG and K-ε-Standard turbulence models. The K-ε-Standard turbulence model showed the best results according to the comparison of velocity profiles with the experimental results of Barkdollet al. (1998) and the results of other numerical studies. Then, in the second section, using this turbulence model, the flow velocity profiles at different sections of the main channel and Intake were compared with the experimental and numerical results of other researchers; and a good agreement has been found between them. The comparison of the obtained results with experimental and numerical results of other researchers indicates that this numerical model can well predict the flow velocity profile in the different sections of the main channel and intake. Given the satisfactory results obtained from the above comparisons, the last section presents a numerical study of other parameters such as shear stress and pressure distribution in the main channel and intake.

Anahtar Kelimeler

lateral intake, flow velocity profile, shear stress and pressure distribution, SSIIM2

Kaynakça

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