Experimental study on slippery droplet dynamics using optical correction method.
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| Title: | Experimental study on slippery droplet dynamics using optical correction method. |
|---|---|
| Authors: | Gim, Yeonghyeon1, Jang, Dong Kyu1, Choi, Sung Ho1, Kang, Giho1, Seong, Baekhoon1, Byun, Doyoung1, Sohn, Dong Kee1, Ko, Han Seo1 hanseoko@skku.edu |
| Source: | Journal of Mechanical Science & Technology. Oct2018, Vol. 32 Issue 10, p4731-4736. 6p. |
| Subjects: | Flow visualization, Optical correlation, Surface coatings, Gravitation, Inclined planes |
| Abstract: | When a droplet is placed on an inclined plane, it can slide down the plane by gravitational force. This phenomenon can occur in many industrial applications such as surface coating and printing, as well as in evaluating the characteristics of a surface. The slippery droplet can be analyzed from the balance between the gravitational force and the sum of the capillary and resistance forces. Researchers have suggested various equations of force balance with several hypotheses. To increase the reliability of the force balance correlation, it is important to obtain an accurate inside velocity profile and the three-dimensional (3D) shape of a droplet. In this paper, an analysis system of the slippery droplet was developed which includes optical correction based on a ray tracing method for velocity field measurement and an ellipse fitting method for droplet shape reconstruction. These correction methods were verified by a numerical simulation and applied to a slippery droplet on an inclined plate coated with Poly methyl methacrylate (PMMA). The wall shear force calculated from the velocity field and that calculated from the force balance were in good agreement. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Mechanical Science & Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 132729963 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Experimental study on slippery droplet dynamics using optical correction method. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Gim%2C+Yeonghyeon%22">Gim, Yeonghyeon</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Jang%2C+Dong+Kyu%22">Jang, Dong Kyu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Choi%2C+Sung+Ho%22">Choi, Sung Ho</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kang%2C+Giho%22">Kang, Giho</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Seong%2C+Baekhoon%22">Seong, Baekhoon</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Byun%2C+Doyoung%22">Byun, Doyoung</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Sohn%2C+Dong+Kee%22">Sohn, Dong Kee</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ko%2C+Han+Seo%22">Ko, Han Seo</searchLink><relatesTo>1</relatesTo><i> hanseoko@skku.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Mechanical+Science+%26+Technology%22">Journal of Mechanical Science & Technology</searchLink>. Oct2018, Vol. 32 Issue 10, p4731-4736. 6p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Flow+visualization%22">Flow visualization</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+correlation%22">Optical correlation</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+coatings%22">Surface coatings</searchLink><br /><searchLink fieldCode="DE" term="%22Gravitation%22">Gravitation</searchLink><br /><searchLink fieldCode="DE" term="%22Inclined+planes%22">Inclined planes</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: When a droplet is placed on an inclined plane, it can slide down the plane by gravitational force. This phenomenon can occur in many industrial applications such as surface coating and printing, as well as in evaluating the characteristics of a surface. The slippery droplet can be analyzed from the balance between the gravitational force and the sum of the capillary and resistance forces. Researchers have suggested various equations of force balance with several hypotheses. To increase the reliability of the force balance correlation, it is important to obtain an accurate inside velocity profile and the three-dimensional (3D) shape of a droplet. In this paper, an analysis system of the slippery droplet was developed which includes optical correction based on a ray tracing method for velocity field measurement and an ellipse fitting method for droplet shape reconstruction. These correction methods were verified by a numerical simulation and applied to a slippery droplet on an inclined plate coated with Poly methyl methacrylate (PMMA). The wall shear force calculated from the velocity field and that calculated from the force balance were in good agreement. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Mechanical Science & Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s12206-018-0920-3 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 4731 Subjects: – SubjectFull: Flow visualization Type: general – SubjectFull: Optical correlation Type: general – SubjectFull: Surface coatings Type: general – SubjectFull: Gravitation Type: general – SubjectFull: Inclined planes Type: general Titles: – TitleFull: Experimental study on slippery droplet dynamics using optical correction method. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Gim, Yeonghyeon – PersonEntity: Name: NameFull: Jang, Dong Kyu – PersonEntity: Name: NameFull: Choi, Sung Ho – PersonEntity: Name: NameFull: Kang, Giho – PersonEntity: Name: NameFull: Seong, Baekhoon – PersonEntity: Name: NameFull: Byun, Doyoung – PersonEntity: Name: NameFull: Sohn, Dong Kee – PersonEntity: Name: NameFull: Ko, Han Seo IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2018 Type: published Y: 2018 Identifiers: – Type: issn-print Value: 1738494X Numbering: – Type: volume Value: 32 – Type: issue Value: 10 Titles: – TitleFull: Journal of Mechanical Science & Technology Type: main |
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