Drag reduction study of a microfiber-coated cylinder
Abstract Drag reduction for a bluff body is imperative in a time of increasing awareness of the environmental impact and sustainability of air travel. Microfiber coating has demonstrated its ability to reduce drag on a bluff body. This was done by applying strips of the coating to a cylinder. To wid...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-09-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-19302-5 |
| _version_ | 1798032512616759296 |
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| author | Mitsugu Hasegawa Yi-Chung Chen Hirotaka Sakaue |
| author_facet | Mitsugu Hasegawa Yi-Chung Chen Hirotaka Sakaue |
| author_sort | Mitsugu Hasegawa |
| collection | DOAJ |
| description | Abstract Drag reduction for a bluff body is imperative in a time of increasing awareness of the environmental impact and sustainability of air travel. Microfiber coating has demonstrated its ability to reduce drag on a bluff body. This was done by applying strips of the coating to a cylinder. To widen the application range of the microfiber coating, a fully microfiber-coated cylinder is studied as it has no directionality relative to incoming flow. It is hypothesized that a large coating coverage will cause a reduction in drag dependent on the Reynolds number Re. The fully microfiber-coated cylinder is studied in a wind tunnel and the drag coefficient is determined at a range of Re in the subcritical-flow regime. It is found that the drag coefficient of the microfiber-coated cylinder is a function of Re, and the critical Reynolds number, where the maximum drag reduction occurs, is lower for a microfiber-coated cylinder compared to that of a conventional smooth-surface cylinder. |
| first_indexed | 2024-04-11T20:14:06Z |
| format | Article |
| id | doaj.art-d1d06047a1424d74bd81d7a6b9b98ac2 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-11T20:14:06Z |
| publishDate | 2022-09-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-d1d06047a1424d74bd81d7a6b9b98ac22022-12-22T04:05:01ZengNature PortfolioScientific Reports2045-23222022-09-011211810.1038/s41598-022-19302-5Drag reduction study of a microfiber-coated cylinderMitsugu Hasegawa0Yi-Chung Chen1Hirotaka Sakaue2Department of Aerospace and Mechanical Engineering, University of Notre DameDepartment of Aerospace and Mechanical Engineering, University of Notre DameDepartment of Aerospace and Mechanical Engineering, University of Notre DameAbstract Drag reduction for a bluff body is imperative in a time of increasing awareness of the environmental impact and sustainability of air travel. Microfiber coating has demonstrated its ability to reduce drag on a bluff body. This was done by applying strips of the coating to a cylinder. To widen the application range of the microfiber coating, a fully microfiber-coated cylinder is studied as it has no directionality relative to incoming flow. It is hypothesized that a large coating coverage will cause a reduction in drag dependent on the Reynolds number Re. The fully microfiber-coated cylinder is studied in a wind tunnel and the drag coefficient is determined at a range of Re in the subcritical-flow regime. It is found that the drag coefficient of the microfiber-coated cylinder is a function of Re, and the critical Reynolds number, where the maximum drag reduction occurs, is lower for a microfiber-coated cylinder compared to that of a conventional smooth-surface cylinder.https://doi.org/10.1038/s41598-022-19302-5 |
| spellingShingle | Mitsugu Hasegawa Yi-Chung Chen Hirotaka Sakaue Drag reduction study of a microfiber-coated cylinder Scientific Reports |
| title | Drag reduction study of a microfiber-coated cylinder |
| title_full | Drag reduction study of a microfiber-coated cylinder |
| title_fullStr | Drag reduction study of a microfiber-coated cylinder |
| title_full_unstemmed | Drag reduction study of a microfiber-coated cylinder |
| title_short | Drag reduction study of a microfiber-coated cylinder |
| title_sort | drag reduction study of a microfiber coated cylinder |
| url | https://doi.org/10.1038/s41598-022-19302-5 |
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