Papers Published

  1. Tang, D.M. and Cizmas, Paul G.A. and Dowell, E.H., Experiments and analysis for a gust generator in a wind tunnel, Journal of Aircraft, vol. 33 no. 1 (1996), pp. 139 - 148 .
    (last updated on 2007/04/10)

    Abstract:
    An experimental investigation was made of the gust field generated by a rotating slotted cylinder installed in the Duke University low-speed, closed-circuit wind tunnel. The system has a very simple configuration with low cost and can produce a controllable single or multiple harmonic gust wave in the lateral and longitudinal directions. It requires minimal power and torque input. A simplified theoretical aerodynamic model and a design estimation of the lateral and longitudinal gust flowfield is also proposed in this article. The design estimate is based on a two-dimensional dynamic lift coefficient that is given by the theoretical and experimental results. An interfering wake vortex effect is the major disadvantage of this system.

    Keywords:
    Lift;Wakes;Vortex flow;Wind effects;Oscillations;Mathematical models;