Measurement of the Aerodynamic Forces Acting on a Non-Spinning Javelin Using an MSBS
Using the world’s largest magnetic suspension and balance system (MSBS) and a low-turbulence wind tunnel, we successfully measured the aerodynamic forces acting on a non-spinning women’s javelin. It was found that the drag and the lift increased as the angle of attack was increased up to 18°. The pi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-06-01
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| Series: | Proceedings |
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| Online Access: | https://www.mdpi.com/2504-3900/49/1/144 |
| _version_ | 1826991590958170112 |
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| author | Takuto Kobayashi Kazuya Seo Shoya Kaneda Kasumi Sasaki Kento Shinji Shogo Oyama Hiroyuki Okuizumi Yasufumi Konishi Hiroaki Hasegawa Shigeru Obayashi |
| author_facet | Takuto Kobayashi Kazuya Seo Shoya Kaneda Kasumi Sasaki Kento Shinji Shogo Oyama Hiroyuki Okuizumi Yasufumi Konishi Hiroaki Hasegawa Shigeru Obayashi |
| author_sort | Takuto Kobayashi |
| collection | DOAJ |
| description | Using the world’s largest magnetic suspension and balance system (MSBS) and a low-turbulence wind tunnel, we successfully measured the aerodynamic forces acting on a non-spinning women’s javelin. It was found that the drag and the lift increased as the angle of attack was increased up to 18°. The pitching moment increased for angles of attack up to about 9°, and then decreased, becoming negative above 12°, indicating nose-down rotation. We used a pseudo supporting rod to simulate a javelin attached to a support, as used in a conventional setup, and confirmed that this interferes with the javelin by creating differences between the aerodynamics forces acting on the javelin with and without the pseudo supporting rod. |
| first_indexed | 2024-03-10T19:10:47Z |
| format | Article |
| id | doaj.art-10a4bf19ef9a438ab39625d157568188 |
| institution | Directory Open Access Journal |
| issn | 2504-3900 |
| language | English |
| last_indexed | 2025-02-18T08:39:00Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Proceedings |
| spelling | doaj.art-10a4bf19ef9a438ab39625d1575681882024-11-03T00:22:22ZengMDPI AGProceedings2504-39002020-06-0149114410.3390/proceedings2020049144Measurement of the Aerodynamic Forces Acting on a Non-Spinning Javelin Using an MSBSTakuto Kobayashi0Kazuya Seo1Shoya Kaneda2Kasumi Sasaki3Kento Shinji4Shogo Oyama5Hiroyuki Okuizumi6Yasufumi Konishi7Hiroaki Hasegawa8Shigeru Obayashi9Faculty of Science, Yamagata University, Yamagata 9908560, JapanFaculty of Science, Yamagata University, Yamagata 9908560, JapanFaculty of Education, Yamagata University, Yamagata 9908560, JapanSchool of Engineering, Tohoku University, Sendai 9808577, JapanSchool of Engineering, Tohoku University, Sendai 9808577, JapanSchool of Engineering, Tohoku University, Sendai 9808577, JapanInstitute of Fluid Science, Tohoku University, Sendai 9908560, JapanInstitute of Fluid Science, Tohoku University, Sendai 9908560, JapanSchool of Engineering, Utsunomiya University, Utsunomiya 3218585, JapanInstitute of Fluid Science, Tohoku University, Sendai 9908560, JapanUsing the world’s largest magnetic suspension and balance system (MSBS) and a low-turbulence wind tunnel, we successfully measured the aerodynamic forces acting on a non-spinning women’s javelin. It was found that the drag and the lift increased as the angle of attack was increased up to 18°. The pitching moment increased for angles of attack up to about 9°, and then decreased, becoming negative above 12°, indicating nose-down rotation. We used a pseudo supporting rod to simulate a javelin attached to a support, as used in a conventional setup, and confirmed that this interferes with the javelin by creating differences between the aerodynamics forces acting on the javelin with and without the pseudo supporting rod.https://www.mdpi.com/2504-3900/49/1/144MSBSjavelinaerodynamic forceswind tunnel test |
| spellingShingle | Takuto Kobayashi Kazuya Seo Shoya Kaneda Kasumi Sasaki Kento Shinji Shogo Oyama Hiroyuki Okuizumi Yasufumi Konishi Hiroaki Hasegawa Shigeru Obayashi Measurement of the Aerodynamic Forces Acting on a Non-Spinning Javelin Using an MSBS Proceedings MSBS javelin aerodynamic forces wind tunnel test |
| title | Measurement of the Aerodynamic Forces Acting on a Non-Spinning Javelin Using an MSBS |
| title_full | Measurement of the Aerodynamic Forces Acting on a Non-Spinning Javelin Using an MSBS |
| title_fullStr | Measurement of the Aerodynamic Forces Acting on a Non-Spinning Javelin Using an MSBS |
| title_full_unstemmed | Measurement of the Aerodynamic Forces Acting on a Non-Spinning Javelin Using an MSBS |
| title_short | Measurement of the Aerodynamic Forces Acting on a Non-Spinning Javelin Using an MSBS |
| title_sort | measurement of the aerodynamic forces acting on a non spinning javelin using an msbs |
| topic | MSBS javelin aerodynamic forces wind tunnel test |
| url | https://www.mdpi.com/2504-3900/49/1/144 |
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