Design of a semihexagonal hydraulic dissipator using ANSYS and a experimental model

Abstract

Water resources are affected by rainstorms, increasing flow rates and velocities, which cause erosion and overflowing of riverbeds. For this reason, it is urgent to design structures that reduce velocities and dissipate the energy caused by increases in flow rates. However, fluid kinematics is complex, as studying fluid behavior requires solving very complex equations, such as the Navier–Stokes and Saint Venant equations. Today, technological advances allow for a partial solution of these equations, which led to the development of this research, in which a three-dimensional model was designed in Autodesk Inventor software and simulated in ANSYS CFX, using water as the fluid, to which an inlet velocity of 0.045 m/s and 0.021 m/s was applied to evaluate whether or not the dissipator module created was able to achieve efficient energy dissipation between the inlet and outlet sections, laying the foundations for future research on application in streams, taking into account the transport of hyperconcentrated fluids.