CAS OpenIR
Research on Melt Wettability Measurements Under Microgravity
Wang Sixue1,2; He Shi1,2; Wang Xiaoqing1; Li Jianqiang3; Yu Qiang1; Li Xiaoyu3; Wang Yuehai4; Ning Keqing4
2021-02-01
Source PublicationMICROGRAVITY SCIENCE AND TECHNOLOGY
ISSN0938-0108
Volume33Issue:1Pages:8
AbstractWetting and the interaction between liquid and solid phases are significantly affected by gravity. In recent years, Chinese scientists have carried out wettability experiments in space, but the limitations of experimental facilities have hindered their ability to carry out in-situ observations of the dynamic process of wettability in space. The future Chinese space station will provide a platform for real-time observation of the melt wettability in space. To study the wettability of melt under microgravity, a research method for real-time observation on orbit is proposed. The change in the image contour is determined on the basis of Hu moments, according to changes in the image, to control the acquisition frame rate. This can greatly reduce the memory required to store the images. At the same time, the proposed method uses the binarization method to process the images, and then performs target searching and positioning. Furthermore, it uses the Canny multi-level edge detection operator to extract the target contour. The Young-Laplace equation is used to fit the contour of the droplet. Finally, it obtains the surface tension and contact angle of the melt droplet in real time. The experimental results show that the data storage capacity can be reduced by 90% nearly using this method, and the change in the contact angle and surface tension in the melting process can be obtained in real time.
KeywordMicrogravity experiment Melt wettability Image feedback control
DOI10.1007/s12217-020-09860-6
Language英语
Funding ProjectStrategic Priority Program on Space Science Project of Chinese Academy of Sciences
WOS Research AreaEngineering ; Thermodynamics ; Mechanics
WOS SubjectEngineering, Aerospace ; Thermodynamics ; Mechanics
Funding OrganizationStrategic Priority Program on Space Science Project of Chinese Academy of Sciences
WOS IDWOS:000614409300001
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/43332
Collection中国科学院过程工程研究所
Corresponding AuthorYu Qiang
Affiliation1.Chinese Acad Sci, Natl Space Sci Ctr, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Comp Sci & Technol, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
4.North China Univ Technol, Sch Informat, Beijing 100043, Peoples R China
Recommended Citation
GB/T 7714
Wang Sixue,He Shi,Wang Xiaoqing,et al. Research on Melt Wettability Measurements Under Microgravity[J]. MICROGRAVITY SCIENCE AND TECHNOLOGY,2021,33(1):8.
APA Wang Sixue.,He Shi.,Wang Xiaoqing.,Li Jianqiang.,Yu Qiang.,...&Ning Keqing.(2021).Research on Melt Wettability Measurements Under Microgravity.MICROGRAVITY SCIENCE AND TECHNOLOGY,33(1),8.
MLA Wang Sixue,et al."Research on Melt Wettability Measurements Under Microgravity".MICROGRAVITY SCIENCE AND TECHNOLOGY 33.1(2021):8.
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