.png){kind=icon}
返回
Vortex dynamics around pitching plates
.png){kind=icon}
PRE
AI
DOI：10.1063/1.4879035.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Vortex dynamics of wakes generated by rectangular aspect-ratio 2 and 4 and two-dimensional pitching flat plates in free stream are examined with direct numerical simulation and water tunnel experiments. Evolution of wake vortices comprised of tip, leading-edge, and trailing-edge vortices is compared with force history for a range of pitch rates. The plate pivots about its leading edge with reduced frequency from p/8 to p/48, which corresponds to pitching over 1 to 6 chord lengths of travel. Computations have reasonable agreement with experiments, despite large differences in Reynolds number. Computations show that the tip effects are confined initially near the wing tips, but begin to strongly affect the leading-edge vortex as the motion of the plate proceeds, with concomitant effects on lift and drag history. Scaling relations based on reduced frequency are shown to collapse aerodynamic force history for the various pitch rates. (C) 2014 AIP Publishing LLC.
Keyword:
IMMERSED BOUNDARY METHOD
WINGS
GENERATION
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
4.3
论文数:
2.9W
被引数:
8.0W
机构
引用论文
Numerical investigation of transitional flow over a rapidly pitching plate快速倾斜板上过渡流的数值研究.png)
PHYSICS OF FLUIDS
PHYSICS OF FLUIDSIF4.3
PREAI
分享收藏分享收藏Virus-like particles and related expressions in mammalian oocytes and preimplantation stage embryos病毒样颗粒及其相关表达物在哺乳动物卵母细胞和植入前阶段胚胎中的表达
PREAI
分享收藏
查看更多内容