Study of Transitional Flows in Thick Airfoils
DOI:
https://doi.org/10.70567/mc.v41i7.35Keywords:
Low Reynolds Number Flow, Thick airfoil, Boundary layer, OpenFOAM(R)Abstract
The growing interest of the aerospace industry in unmanned aerial vehicles (UAVs) and micro air vehicles (MAVs) is driving research in the field of low Reynolds number flows. These same working ranges are observable in renewable energy sources such as wind turbines and hydraulic turbines. In this context, numerical simulation using CFD is a crucial tool that allows us to study the physical behavior of aerodynamic airfoils, predict vortex structures, and recirculations caused by the fluid/structure interaction that characterizes these phenomena. This work aims to reproduce experimental and numerical tests carried out on a Risø B1-18 and NACA 0024 airfoil, thick aerodynamic airfoils commonly used in this area. Using the OpenFOAM(R) tool and paying due attention to turbulence modeling in low Re regimes, the aforementioned airfoils were analyzed with the objective of predicting characteristic values (Cd and Cl), pressure distribution and boundary layer separation point.
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