University of Tehran Press Iranian Journal of Soil and Water Research 2008-479X 51 6 2020 08 22 Numerical Modeling of 3D Flow Pattern at Lateral Intake Numerical Modeling of 3D Flow Pattern at Lateral Intake 1501 1513 75653 10.22059/ijswr.2020.294113.668429 FA S.M. Hadi Meshkati Water Research Institute, Tehran, Iran 0000-0002-2049-9676 S. AliAkbar Salehi Civil and Environmental Engineering, Taribiat Modares University, Tehran, Iran Journal Article 2019 12 23 In this paper, using a 3D numerical model, the flow pattern at lateral intake was simulated. A three-dimensional finite volume model with standard  was developed to solve turbulence equations. In order to simulate the main and diversion channels, only one block with varied domain arrays was used. The Reynolds-Averaged Navier-Stokes (RANS) equations are solved in a curvilinear non-orthogonal coordinate system with collocated grid. Pressure correction algorithm of SIMPLE and convection schemes of Power Law are applied to the model. In addition, for velocity-pressure coupling; the Rhie and Chow method were used. Experimental data obtained from laboratory study is utilized to verify the model computations. The flow pattern at lateral intake with one-block numerical method was modeled. The numerically modeled results show acceptable agreement with the measured data and demonstrate the capability of the developed numerical model. In this paper, using a 3D numerical model, the flow pattern at lateral intake was simulated. A three-dimensional finite volume model with standard  was developed to solve turbulence equations. In order to simulate the main and diversion channels, only one block with varied domain arrays was used. The Reynolds-Averaged Navier-Stokes (RANS) equations are solved in a curvilinear non-orthogonal coordinate system with collocated grid. Pressure correction algorithm of SIMPLE and convection schemes of Power Law are applied to the model. In addition, for velocity-pressure coupling; the Rhie and Chow method were used. Experimental data obtained from laboratory study is utilized to verify the model computations. The flow pattern at lateral intake with one-block numerical method was modeled. The numerically modeled results show acceptable agreement with the measured data and demonstrate the capability of the developed numerical model. https://ijswr.ut.ac.ir/article_75653_bf580a708c65c24be111c367feee1ac5.pdf