University of Tehran Civil Engineering Infrastructures Journal 2322-2093 46 2 2013 12 01 Numerical Simulation of Free Surface in the Case of Plane Turbulent Wall Jets in Shallow Tailwater 189 198 40504 10.7508/ceij.2013.02.006 EN Mitra Javan 1 School of Civil Engineering The University of Razi Kermanshah, Tagh Bostan IRAN Afshin Eghbalzadeh School of Civil Engineering The University of Razi Kermanshah, Tagh Bostan IRAN Masoud Montazeri Namin School of Civil Engineering The University of Tehran Tehran, 16 Azar St., Enghelab Ave. IRAN Journal Article 2012 05 13 Wall-jet flow is an important flow field in hydraulic engineering, and its applications include flow from the bottom outlet of dams and sluice gates. In this paper, the plane turbulent wall jet in shallow tailwater is simulated by solving the Reynolds Averaged Navier-Stokes equations using the standard  turbulence closure model. This study aims to explore the ability of a time splitting method on a non-staggered grid in curvilinear coordinates for simulation of two-dimensional (2D) plane turbulent wall jets with finite tailwater depth. In the developed model, the kinematic free-surface boundary condition is solved simultaneously with the momentum and continuity equations, so that the water surface elevation can be obtained along with the velocity and pressure fields as part of the solution. 2D simulations are carried out for plane turbulent wall jets free surface in shallow tailwater. The comparison undertaken between numerical results and experimental measurements show that the numerical model can capture the velocity field and the drop in the water surface elevation at the gate with reasonable accuracy. <br /><br />  https://ceij.ut.ac.ir/article_40504_d0911f69228cc3f703e1c4f40301e40e.pdf