Measurement of the aerodynamic forces acting on a non-spinning javelin using an MSBS

(Messung der aerodynamischen Kräfte, die auf einen sich nicht drehenden Speer wirken, unter Verwendung eines 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 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.
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Schlagworte: Speerwurf Sportgerät Aerodynamik Mess- und Informationssystem
Notationen: Naturwissenschaften und Technik Kraft-Schnellkraft-Sportarten
Tagging: Flugbahn Flugeigenschaft
DOI: 10.3390/proceedings2020049144
Veröffentlicht in: Proceedings
Veröffentlicht: 2020
Jahrgang: 49
Heft: 1
Seiten: 144
Dokumentenarten: Artikel
Sprache: Englisch
Level: hoch