Aerodynamic forces on a cantilevered circular cylinder have been studied in a wind tunnel using rough-walled models. The primary purpose of this study is to construct models of the aerodynamic coefficients for full-scale application. Measurements were made of the mean and fluctuating wind pressures in three kinds of flows, i.e., a smooth flow, a grid-produced turbulent flow and a turbulent boundary layer. The data gathered from a number of experiments concerned with this subject are also reviewed. The results indicate that the aerodynamic coefficients in the transcritical regime are primarily functions of the aspect ratio and the surface roughness of the cylinder. For the drag coefficient and the circumferential pressure distribution, quantitative descriptions of their behavior as functions of these two factors are suggested. Furthermore, it was found that the fluctuating wind pressures can adequately be predicted by a quasi-steady theory for actual structures in turbulent atmospheric winds.
|Number of pages||17|
|Journal||Journal of Wind Engineering and Industrial Aerodynamics|
|Publication status||Published - 1994 Feb|
ASJC Scopus subject areas
- Civil and Structural Engineering
- Renewable Energy, Sustainability and the Environment
- Mechanical Engineering