Suction Jet on 2D Airfoil, CFD Simulation

Description

Description

Using suction jet flow control, this work looks at how a two-dimensional airfoil’s aerodynamic performance can be improved. Boundary layer separation is delayed by applying consistent suction at certain sites along the airfoil surface, therefore enhancing lift-to-drag ratios. The study assesses different suction configurations and flow parameters using computational fluid dynamics (CFD) simulations. More efficient airfoil designs for aerospace applications are being developed as a result of this work. In this project, a numerical simulation of suction jet on a 2D NACA0018 airfoil was carried out. The main objective was to investigate the effect of suction on the flow behavior around the airfoil and its aerodynamic performance. Additionally, in a related study, the effect of injection was also analyzed, and the complete results of that simulation are presented as well.

In this project, the aerodynamic performance of a two-dimensional airfoil was investigated using flow control via suction jet. The geometry was modeled in Space Claim software, and the NACA0018 airfoil profile was selected for the analysis. Meshing was carried out in ANSYS Meshing, using an unstructured mesh with boundary layer refinement near the airfoil walls.

Methodology

This simulation is done steadily and with a pressure-based solver. The effect of gravity is ignored, and the turbulence of the flow is simulated using the SST k-omega model. The SST k-omega turbulence model adequately describes the flow behavior near the airfoil wall, hence solving the turbulent flow equations. Providing better forecasts of boundary layer events and flow separation, this model combines the benefits of the k-epsilon and k-omega models.

Conclusion

The outcomes of the simulations point to a notable impact of suction jet on the NACA0018 two-dimensional airfoil in enhancing aerodynamic performance. Suction’s application postpones boundary layer separation, hence increasing lift and lowering drag. A comparison of the lift-to-drag ratio (L/D) in cases with and without suction clearly shows an improvement in aerodynamic efficiency. These results could help to enhance the operation of flight systems and be used in the design of ideal airfoils for aerospace uses.