.png){kind=icon}
返回
Turbulence generator using a precessing sphere
.png){kind=icon}
OA
AI
DOI：10.1063/1.2746040.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
We propose a precessing sphere as a tabletop turbulence generator, which has less uncertainty in the setting of control parameters and the resulting high flow-reproducibility. The precession is realized by rotating the spin axis of a sphere around another axis (the precession axis). In our experiments, the two axes are fixed at right angles. The flow inside the sphere is governed only by two nondimensional parameters, one being Re (the Reynolds number defined by the maximum peripheral velocity around the spin axis) and the other being Gamma (the rate of precession). The range of parameters for sustaining turbulence is revealed by the time-series analysis of velocity fields measured by particle image velocimetry. Well-developed turbulence can be sustained even for Gamma of the order of a few percent when Re is beyond a few thousands. (c) 2007 American Institute of Physics.
Keyword:
FLOWS
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
暂无机构信息
引用论文
.png){kind=icon}
Teaching peace in the midst of civil war: tensions between global and local discourses in Sri Lankan civics textbooks在斯里兰卡公民教科书中教授和平：全球与地方话语之间的张力
PREAI
分享收藏
查看更多内容