Experimental and Computational Study of Archery Arrows Fletched with Straight Vanes
The aerodynamic characteristics of archery arrows fletched with two types of straight vanes, for which the area is different, were studied. The arrows’ pitching moment (<i>C</i><sub>M</sub>), lift (<i>C</i><sub>L</sub>) and drag (<i>C</i>&l...
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MDPI AG
2020-06-01
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| Online Access: | https://www.mdpi.com/2504-3900/49/1/56 |
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| author | Julio Ortiz Atsushi Serino Toshinari Hasegawa Takahito Onoguchi Hiroki Maemukai Takeshi Miyazaki Hiroki Sugiura |
| author_facet | Julio Ortiz Atsushi Serino Toshinari Hasegawa Takahito Onoguchi Hiroki Maemukai Takeshi Miyazaki Hiroki Sugiura |
| author_sort | Julio Ortiz |
| collection | DOAJ |
| description | The aerodynamic characteristics of archery arrows fletched with two types of straight vanes, for which the area is different, were studied. The arrows’ pitching moment (<i>C</i><sub>M</sub>), lift (<i>C</i><sub>L</sub>) and drag (<i>C</i><sub>D</sub>) coefficients were measured in the 60 × 60 cm Magnetic Suspension and Balance System (MSBS) from JAXA. At a Reynolds number of Re = 1.2 × 10<sup>4</sup>, the values of <i>C</i><sub>D</sub> were 1.56 and 2.05 for the short and large vanes, respectively. In a second experimental procedure, the arrows’ deceleration in free flight was measured by inserting an acceleration sensor inside their shafts. For shots with an initial velocity of around 56.4 ms<sup>−1</sup>, a velocity decay of around 8% was measured. A turbulent–laminar boundary layer transition during free flight was found for shots with an average Re = 1.8 × 10<sup>4</sup>. Lastly, through numerical computations, the area difference of the two vanes was analyzed to verify the importance of <i>C</i><sub>M</sub> and <i>C</i><sub>L</sub> during the arrows’ flights. |
| first_indexed | 2024-03-10T19:11:38Z |
| format | Article |
| id | doaj.art-f61f40c9d02b4d4cb88d6dbb9b93ccee |
| institution | Directory Open Access Journal |
| issn | 2504-3900 |
| language | English |
| last_indexed | 2024-03-10T19:11:38Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Proceedings |
| spelling | doaj.art-f61f40c9d02b4d4cb88d6dbb9b93ccee2023-11-20T03:49:01ZengMDPI AGProceedings2504-39002020-06-014915610.3390/proceedings2020049056Experimental and Computational Study of Archery Arrows Fletched with Straight VanesJulio Ortiz0Atsushi Serino1Toshinari Hasegawa2Takahito Onoguchi3Hiroki Maemukai4Takeshi Miyazaki5Hiroki Sugiura6Department of Mechanical Engineering and Intelligent Systems, Graduate School of Informatics and Engineering, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, JapanDepartment of Mechanical Engineering and Intelligent Systems, Graduate School of Informatics and Engineering, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, JapanDepartment of Mechanical Engineering and Intelligent Systems, Graduate School of Informatics and Engineering, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, JapanDepartment of Mechanical Engineering and Intelligent Systems, Graduate School of Informatics and Engineering, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, JapanDepartment of Mechanical Engineering and Intelligent Systems, Graduate School of Informatics and Engineering, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, JapanDepartment of Mechanical Engineering and Intelligent Systems, Graduate School of Informatics and Engineering, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, JapanJAXA, 7-44-1 Jindaiji-higashimachi, Chofu, Tokyo 182-8522, JapanThe aerodynamic characteristics of archery arrows fletched with two types of straight vanes, for which the area is different, were studied. The arrows’ pitching moment (<i>C</i><sub>M</sub>), lift (<i>C</i><sub>L</sub>) and drag (<i>C</i><sub>D</sub>) coefficients were measured in the 60 × 60 cm Magnetic Suspension and Balance System (MSBS) from JAXA. At a Reynolds number of Re = 1.2 × 10<sup>4</sup>, the values of <i>C</i><sub>D</sub> were 1.56 and 2.05 for the short and large vanes, respectively. In a second experimental procedure, the arrows’ deceleration in free flight was measured by inserting an acceleration sensor inside their shafts. For shots with an initial velocity of around 56.4 ms<sup>−1</sup>, a velocity decay of around 8% was measured. A turbulent–laminar boundary layer transition during free flight was found for shots with an average Re = 1.8 × 10<sup>4</sup>. Lastly, through numerical computations, the area difference of the two vanes was analyzed to verify the importance of <i>C</i><sub>M</sub> and <i>C</i><sub>L</sub> during the arrows’ flights.https://www.mdpi.com/2504-3900/49/1/56archery arrowstraight vanesacceleration sensormagnetic wind tunnelnumerical computations |
| spellingShingle | Julio Ortiz Atsushi Serino Toshinari Hasegawa Takahito Onoguchi Hiroki Maemukai Takeshi Miyazaki Hiroki Sugiura Experimental and Computational Study of Archery Arrows Fletched with Straight Vanes Proceedings archery arrow straight vanes acceleration sensor magnetic wind tunnel numerical computations |
| title | Experimental and Computational Study of Archery Arrows Fletched with Straight Vanes |
| title_full | Experimental and Computational Study of Archery Arrows Fletched with Straight Vanes |
| title_fullStr | Experimental and Computational Study of Archery Arrows Fletched with Straight Vanes |
| title_full_unstemmed | Experimental and Computational Study of Archery Arrows Fletched with Straight Vanes |
| title_short | Experimental and Computational Study of Archery Arrows Fletched with Straight Vanes |
| title_sort | experimental and computational study of archery arrows fletched with straight vanes |
| topic | archery arrow straight vanes acceleration sensor magnetic wind tunnel numerical computations |
| url | https://www.mdpi.com/2504-3900/49/1/56 |
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