Abstract
The aerodynamic characteristics of 2-dimensional airfoils in proximity to the ground are examined. The purposes of this paper are: 1. aerodynamic research of the steady pressure distribution in proximity to the ground, 2. suggestion of the methods to simulate the ground effect and 2-dimensionality in the wind tunnel testing, 3. examination that it is reasonable to use the finite difference method based on the small perturbation velocity potential equation in the ground effect problem. The pressure distribution changes according to the height, the ways of which are different between a flat plate airfoil and a NACA0012 airfoil. The effect of viscosity is also examined through numerical calculations.
