Comparative study of velocities and pressures in circular and hexagonal sections experimentally and using Autodesk CFD to analyze the effect of scour in bridge piers

Napuchi J.M.V.; Romero P.M.L.; Arteaga A.C. · Multidisciplinary Science Journal (2025) · DOI: 10.31893/multiscience.2025ss0101

Resumen

This study tests the pressure and speed behavior that acts on circular and hexagonal profiles in both laminar and turbulent flow conditions, focusing on how these variables change as the power prevention angles range from 0 ° to 90 °. A careful comparison of speed current was made using the laminar flow test stand, which was complemented by the design and simulation on Autodesk inventor and Autodesk CFD (computing fluid dynamics). The Autodesk CFD software was used to generate very accurate flow models, providing valuable insights into mismatches and similarities between imitated forecasts and experimental data collected in the laboratory. These simulations allowed the development of flow parameters to develop analysis in various profiles and conditions. Several mathematical models have been evaluated to model water flow in turbulent conditions, emphasizing the model's choice that best adapted to experimental results. During this assessment, major phenomena, such as zone of scour, drag, detachment points and power stagnation were identified. These phenomena are important to understand how different profiles respond to fluid stress. Since excessive negative pressure is an important hydraulic structure erosion promoter, a profile that produces as little negative pressure as possible is what works best in reducing negative pressure. The results of the study provide a valuable insight into how different geometric profiles work in the real-world scenarios that improve the understanding of the liquid dynamics involved in different flow conditions. Engineers can use these discoveries to improve the durability, performance and efficiency of hydraulic structures in a variety of flow conditions that often occur in the real-world hydraulic systems with important consequences for the design and optimization of such structures. Copyright

Instituciones: Universidad Privada del Norte