Experiments and analysis for a gust generator in a wind tunnel
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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.
author list (cited authors)
Tang, D. M., Cizmas, P., & Dowell, E. H.
complete list of authors
Tang, DM||Cizmas, Paul GA||Dowell, EH