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.

Effect of Cambering on the Aerodynamic Performance of Heaving Airfoils

Guerrero, Joel E.
2009

Abstract

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.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11567/1018213
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