Planform and Camber Effects on the Aerodynamics of Low-Reynolds-Number Wings
This work is a computational study of the aerodynamics of a wing in a constant freestream at angles of attack ranging from 0 to 45⁰ and an extremely low Reynolds number of 500. Four wings were studied: rectangular with and without camber and semi-ellipse with and without camber. Lift and drag coefficients were determined and their trends were explained, including a lift coefficient peak at ~20 for all geometries investigated. Flow features were also identified and explained. The dominant flow feature was the tip vortex, which moves streamlines rootward and forms a spiral vortex at high angles of attack for rectangular wings. Semi-ellipse wings also have a spiral vortex at higher angles of attack. Surface stream traces were also investigated and showed complex vortex-dominated flow patterns that depended on plan form shape and angle of attack
T. A. Swanson and K. M. Isaac, "Planform and Camber Effects on the Aerodynamics of Low-Reynolds-Number Wings," Journal of Aircraft, American Institute of Aeronautics and Astronautics (AIAA), Jan 2010.
The definitive version is available at http://dx.doi.org/10.2514/1.45921
Mechanical and Aerospace Engineering
Article - Journal
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