J4 ›› 2009, Vol. 6 ›› Issue (4): 398-407.doi: 10.1016/S1672-6529(08)60134-1
Effect of Cambering on the Aerodynamic Performance of Heaving Airfoils
Joel E. Guerrero
- Postdoctoral Research Fellow, Department of Civil, Environmental and Architectural Engineering, University of Genoa, Via Montallegro 1, Genoa, 16145, Italy
Effect of Cambering on the Aerodynamic Performance of Heaving Airfoils
Joel E. Guerrero
- Postdoctoral Research Fellow, Department of Civil, Environmental and Architectural Engineering, University of Genoa, Via Montallegro 1, Genoa, 16145, Italy
摘要：
In the present work, a parametric numerical study is conducted in order to assess the effect of airfoil cambering on the aerodynamic performance of rigid heaving airfoils. The incompressible Navier-Stokes equations are solved in their velocity-pressure formulation using a second-order accurate in space and time finite-difference scheme. To tackle the problem of moving boundaries, the governing equations are solved on overlapping structured grids. The numerical simulations are performed at a Reynolds number of Re = 1100 and at different values of Strouhal number and reduced frequency. The results obtained show that the airfoil cambering geometric parameter has a strong influence on the average lift coefficient, while it has a smaller impact on the average thrust coefficient and propulsive efficiency of heaving airfoils.