| 基于回流多风扇主动控制引导风洞的风场模拟试验 |
| |
| 引用本文： | 陈彬,姚裕,易弢,李先影,王健.基于回流多风扇主动控制引导风洞的风场模拟试验[J].南京航空航天大学学报,2019,51(3):374-381. |
| |
| 作者姓名： | 陈彬 姚裕 易弢 李先影 王健 |
| |
| 作者单位： | 1.国网福建省电力有限公司电力科学研究院，福州，350007;2.国网公司强台风环境抗风减灾实验室(培育)，福州，350007;3.南京航空航天大学航空学院，南京，210016;4.南京航空航天大学机电学院，南京，210016 |
| |
| 基金项目： | 国家重点研发计划 2018YFC0309100;国家自然科学基金 51375230;国家电网公司科技“强台风环境配电网风涝灾害预警及应急复电关键技术研究与示范应用” SGTYHT-16-JS-198;江苏省研究生科研与实践创新计划 KYCX19_0166国家重点研发计划(2018YFC0309100)资助项目；国家自然科学基金(51375230)资助项目；国家电网公司科技“强台风环境配电网风涝灾害预警及应急复电关键技术研究与示范应用”(SGTYHT-16-JS-198)资助项目；江苏省研究生科研与实践创新计划（KYCX19_0166）资助项目。 |
| |
| 摘 要： | 为了深入开展复杂建筑物及输配电线路的台风风荷载研究,提升复杂建筑物及输配电线路抗台风灾害的能力,拟研制一种回流多风扇主动控制风洞。为了突破回流多风扇主动控制风洞结构设计的关键技术,验证全尺寸风洞能否达到预期指标,研制了回流单动力段主动控制引导风洞。文中主要介绍了该引导风洞的结构设计和主动来流(均匀流场和湍流流场)模拟试验。试验结果表明:该引导风洞的最大风速达到18.2 m/s;正弦脉动流场风速为15.1 m/s(平均速度)±3.8 m/s(振幅)时,最大频率为7 Hz;正弦脉动风场模拟相似度高达94.3%。
|
| 关 键 词： | 多风扇主动控制 风洞 湍流 回流 台风 |
| 收稿时间： | 2018/12/26 0:00:00 |
| 修稿时间： | 2019/1/23 0:00:00 |
Wind Field Simulation in Small-Scale Model of Closed-Circuit Multiple Controlled Fan Wind Tunnel |
| |
| CHEN Bin,YAO Yu,YI Tao,LI Xianying,WANG Jian.Wind Field Simulation in Small-Scale Model of Closed-Circuit Multiple Controlled Fan Wind Tunnel[J].Journal of Nanjing University of Aeronautics & Astronautics,2019,51(3):374-381. |
| |
| Authors: | CHEN Bin YAO Yu YI Tao LI Xianying WANG Jian |
| |
| Institution: | 1.State Grid Fujian Electric Power Research Institute, Fuzhou, 350007, China;2.State Grid Cultivating Laboratory of;Wind Resistance and Disaster Mitigation Under Severe Typhoon Environment, Fuzhou, 350007, China;3.College of Aerospace Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing, 210016, China;4.College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics,Nanjing, 210016, China |
| |
| Abstract: | The multiple controlled fan wind tunnel is designed to investigate the typhoon wind load and improve the resistance ability for complex buildings and transmission tower-line systems (TTLS). In order to achieve the key technology during the structure design of the full-scale wind tunnel, a small-scale model of the closed-circuit single controlled fan wind tunnel is established. The uniform and turbulence characteristics of the atmospheric boundary layer (ABL) in the small-scale wind tunnel are discussed. The obtained results show that the value of the maximum average wind speed can reach 18.2 m/s and the maximum circular frequency is 7 Hz. Meanwhile, the mean wind speed of the sinusoidal wave flow is 15.1 m/s at the peak of amplitude of 3.8 m/s. The generated sinusoidal wave flow has a high correlation coefficient at 94.3% with the target. |
| |
| Keywords: | multiple controlled fan wind tunnel turbulence closed-circuit typhoon |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《南京航空航天大学学报》浏览原始摘要信息 |
| 点击此处可从《南京航空航天大学学报》下载免费的PDF全文 |
|
