A single-camera synthetic schlieren method for measuring two-dimensional liquid surfaces | |
Xu D(徐多); Li HX; Avila M | |
会议录名称 | American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM |
2021 | |
会议名称 | Fluids Engineering Division Summer Meeting, FEDSM 2021 |
会议日期 | 10 August 2021 到 12 August 2021 |
会议地点 | Virtual, Online |
摘要 | A single-camera synthetic Schlieren method is introduced here to measure two-dimensional topography and depth of dynamic free liquid surfaces. The method is simple and easy to implement. Because of light refraction (following Snell s law), markers on a flat bottom which are seen through the surfaces of a transparent liquid are virtually displaced. This leads to a governing equation that the liquid surface depth (and its topography) is associated with the marker displacement. In the equation, the refractive index of the liquid (e.g. water) can be obtained by a refractometer (or from a technical reference), and the displacements of the markers can be obtained by a cross-correlation method which is usually used in particle image velocimetry. In the equation, the only unknown, the depth of the surface, can be obtained by solving the governing equation with boundary conditions. Unlike free-surface synthetic Schlieren (FS-SS) of Moisy et al. (Exp. Fluids, 1021, 46, 2009), our method does not require a reference depth (which is obtained before or after experiments), so that flows with temporally evolving depth can be measured. Experiments of liquid ripples and dam-break flows were performed to test the method. The results agree well with those obtained with FS-SS and visualization measurements. © 2021 American Society of Mechanical Engineers (ASME). All rights reserved. |
URL | 查看原文 |
收录类别 | EI |
语种 | 英语 |
文献类型 | 会议论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/87798 |
专题 | 非线性力学国家重点实验室 |
作者单位 | 1.State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190, China 2.Center of Applied Space Technology and Microgravity, University of Bremen, Bremen, 28359, Germany 3.MAPEX Center for Materials and Processes, University of Bremen, Bremen, 28359, Germany |
推荐引用方式 GB/T 7714 | Xu D,Li HX,Avila M. A single-camera synthetic schlieren method for measuring two-dimensional liquid surfaces[C]American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM,2021. |
条目包含的文件 | 下载所有文件 | |||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
66507.pdf(4040KB) | 会议论文 | 开放获取 | CC BY-NC-SA | 浏览 下载 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
Lanfanshu学术 |
Lanfanshu学术中相似的文章 |
[徐多]的文章 |
[Li HX]的文章 |
[Avila M]的文章 |
百度学术 |
百度学术中相似的文章 |
[徐多]的文章 |
[Li HX]的文章 |
[Avila M]的文章 |
必应学术 |
必应学术中相似的文章 |
[徐多]的文章 |
[Li HX]的文章 |
[Avila M]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论