A single-camera synthetic Schlieren method for the measurement of free liquid surfaces
文献类型：期刊论文
| 作者 | Li, Huixin3; Avila, Marc3; Xu, Duo1,2,3 ; Xu D(徐多)
|
| 刊名 | EXPERIMENTS IN FLUIDS
 |
| 出版日期 | 2021-11-01 |
| 卷号 | 62期号:11页码:15 |
| ISSN号 | 0723-4864 |
| DOI | 10.1007/s00348-021-03326-0 |
| 通讯作者 | Xu, Duo(duo.xu@imech.ac.cn) |
| 英文摘要 | A single-camera synthetic Schlieren method is introduced to measure the height of a dynamic free liquid surface in a container with a flat bottom. Markers placed on the bottom, seen through the free surface, are virtually displaced due to light refraction at the surface. According to Snell's law, the marker displacements depend on the refractive indices of the transparent liquid and the air, and on the surface height and its spatial gradients. We solve the resulting governing nonlinear equation with the Newton-Raphson method to obtain the surface height. Our method does not require a reference surface height, which allows the measurement of surfaces topography in situations where the liquid depth is unknown. We demonstrate the accuracy of the method by performing experiments of surface ripples and dam-break flows and discuss the measurement uncertainty, errors and limitations. |
| WOS关键词 | WAVES ; IMAGE |
| 资助项目 | China Scholarship Council[201804910530] ; Deutsche Forschungsgemeinschaft (DFG, German Science Foundation)[INST 144/464] |
| WOS研究方向 | Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000707032100001 |
| 资助机构 | China Scholarship Council ; Deutsche Forschungsgemeinschaft (DFG, German Science Foundation) |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/87587]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Xu, Duo |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 3.Univ Bremen, Ctr Appl Space Technol & Micrograv ZARM, D-28359 Bremen, Germany |
| 推荐引用方式 GB/T 7714 | Li, Huixin,Avila, Marc,Xu, Duo,et al. A single-camera synthetic Schlieren method for the measurement of free liquid surfaces[J]. EXPERIMENTS IN FLUIDS,2021,62(11):15. |
| APA | Li, Huixin,Avila, Marc,Xu, Duo,&徐多.(2021).A single-camera synthetic Schlieren method for the measurement of free liquid surfaces.EXPERIMENTS IN FLUIDS,62(11),15. |
| MLA | Li, Huixin,et al."A single-camera synthetic Schlieren method for the measurement of free liquid surfaces".EXPERIMENTS IN FLUIDS 62.11(2021):15. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
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。