کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
293316 | 511124 | 2008 | 12 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Gust occurrence in simulated non-stationary winds Gust occurrence in simulated non-stationary winds](/preview/png/293316.png)
An investigation is presented of peak gust intensity in non-stationary winds of different durations, in which the non-turbulent component of the event is fully controlled. A typical downburst was simulated repeatedly using a technique that utilizes a parametric analytical model of the downburst's non-turbulent winds, and an amplitude-modulated Gaussian stochastic process for the turbulent component. The peak gust strength of each event was expressed as a peak factor in relation to the largest non-turbulent speed. The properties of the simulated downburst peak factors are compared with those of stationary events of varied duration. A parametric study in which the non-turbulent component of the wind was simulated using a sine wave, which can be related to a downburst through the use of a “storm period” (SP) parameter, was conducted. A range of SP and turbulence amplitude modulation factors were used, and the properties of the peak factors are discussed.
Journal: Journal of Wind Engineering and Industrial Aerodynamics - Volume 96, Issues 10–11, October–November 2008, Pages 2161–2172