方案摘要
方案下载应用领域 | 其他 |
检测样本 | 其他 |
检测项目 | |
参考标准 | 暂无 |
The flow field of a laboratory-simulated tornado was studied by means of 2-D Particle Image Velocimetry or PIV technique with the purpose of investigating the effects of roughness on the near-ground tornado-like vortex structure and its velocity distribution. The results show the flow regime transition from multi-celled vortices over the smooth surface at a higher swirl ratio to singleor dual-celled vortices with roughness. Significant difference in velocities and turbulence characteristics is observed as a result of increasing ground roughness. This work is part of a project that seeks better understanding of the near-ground flow field and resulting wind-induced loads on structures in a tornado.
在一个双稳湍流涡旋火焰中,对间歇性动态的时间-频率定位
Particle-laden Taylor-Couette流:高阶转变和径向局部波浪涡旋的证据
7根杆束的流体-结构相互作用:用实验数据对比数值模拟
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