Yıldız, AliMartı, Ali İhsanYılmaz, Volkan2024-12-062024-12-062019https://hdl.handle.net/20.500.13091/9633A flow passing under a sluice gate is generally in supercritical regime in open channels. If the regime of the flow is changed from supercritical to subcritical by a step or contraction, a hydraulic jump occurs. Although a hydraulic jump act as an energy dissipater, an uncontrolled or unpredicted hydraulic jump can damage hydraulic structures. Therefore, determination of parameters such as position of hydraulic jump, flow depths at subcritical and supercritical phases has great importance. Computational fluid dynamics are used to predict behavior of flow in open channels, but the accuracy of these results should be tested. In this study, a simple open channel system is used in order to investigate behavior of hydraulic jump and determine position of it. The regime of the flow passing through the sluice gate is changed to subcritical flow by a step which placed after sluice gate and a hydraulic jump is formed. Position of hydraulic jump, flow depths and flow velocities are measured for 2 different gate openings and 40 different discharge values. Numerical model of the physical experiment is created in same dimensions and initial conditions by Ansys-Fluent. Results of numerical and physical models are compared. According to results, CFD programs are sufficiently advanced to simulate a hydraulic jump.eninfo:eu-repo/semantics/closedAccessHydraulic JumpNumerical ModelingConference Object