Comparing the Aerodynamic Behaviour of Real Footballs to a Smooth Sphere Using Tomographic PIV
Many studies have investigated the forces acting on a football in flight and how these change with the introduction or modification of surface features; however, these rarely give insight into the underlying fluid mechanics causing these changes. In this paper, force balance and tomographic particle...
| Main Authors: | , , , , , |
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| Format: | Article |
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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/2504-3900/49/1/150 |
| _version_ | 1797565350757269504 |
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| author | Matthew Ward Martin Passmore Adrian Spencer Andy Harland Henry Hanson Tim Lucas |
| author_facet | Matthew Ward Martin Passmore Adrian Spencer Andy Harland Henry Hanson Tim Lucas |
| author_sort | Matthew Ward |
| collection | DOAJ |
| description | Many studies have investigated the forces acting on a football in flight and how these change with the introduction or modification of surface features; however, these rarely give insight into the underlying fluid mechanics causing these changes. In this paper, force balance and tomographic particle image velocimetry (PIV) measurements were taken on a smooth sphere and a real Telstar18 football at a range of airspeeds. This was done under both static and spinning conditions utilizing a lower support through the vertical axis of the ball. It was found that the presence of the seams and texturing on the real ball were enough to cause a change from a reverse Magnus effect on the smooth ball to a conventional Magnus on the real ball in some conditions. The tomographic PIV data showed the traditional horseshoe-shaped wake structure behind the sphere and how this changed with the type of Magnus effect. It was found that the positioning of these vortices compared well with the measured side forces. |
| first_indexed | 2024-03-10T19:10:55Z |
| format | Article |
| id | doaj.art-31e638b6a51042b29945af03b3a014b6 |
| institution | Directory Open Access Journal |
| issn | 2504-3900 |
| language | English |
| last_indexed | 2024-03-10T19:10:55Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Proceedings |
| spelling | doaj.art-31e638b6a51042b29945af03b3a014b62023-11-20T03:47:45ZengMDPI AGProceedings2504-39002020-06-0149115010.3390/proceedings2020049150Comparing the Aerodynamic Behaviour of Real Footballs to a Smooth Sphere Using Tomographic PIVMatthew Ward0Martin Passmore1Adrian Spencer2Andy Harland3Henry Hanson4Tim Lucas5Department of Aeronautical and Automotive Engineering, Loughborough University, Loughborough LE11 3TU, UKDepartment of Aeronautical and Automotive Engineering, Loughborough University, Loughborough LE11 3TU, UKDepartment of Aeronautical and Automotive Engineering, Loughborough University, Loughborough LE11 3TU, UKSports Technology Institute, Loughborough University, Loughborough LE11 3TU, UKAdidas FUTURE team, Adidas AG, Adi-Dassler-Strasse, 91074 Herzogenaurach, GermanyAdidas FUTURE team, Adidas AG, Adi-Dassler-Strasse, 91074 Herzogenaurach, GermanyMany studies have investigated the forces acting on a football in flight and how these change with the introduction or modification of surface features; however, these rarely give insight into the underlying fluid mechanics causing these changes. In this paper, force balance and tomographic particle image velocimetry (PIV) measurements were taken on a smooth sphere and a real Telstar18 football at a range of airspeeds. This was done under both static and spinning conditions utilizing a lower support through the vertical axis of the ball. It was found that the presence of the seams and texturing on the real ball were enough to cause a change from a reverse Magnus effect on the smooth ball to a conventional Magnus on the real ball in some conditions. The tomographic PIV data showed the traditional horseshoe-shaped wake structure behind the sphere and how this changed with the type of Magnus effect. It was found that the positioning of these vortices compared well with the measured side forces.https://www.mdpi.com/2504-3900/49/1/150footballsocceraerodynamicsMagnus effectreverse Magnus effecttomographic PIV |
| spellingShingle | Matthew Ward Martin Passmore Adrian Spencer Andy Harland Henry Hanson Tim Lucas Comparing the Aerodynamic Behaviour of Real Footballs to a Smooth Sphere Using Tomographic PIV Proceedings football soccer aerodynamics Magnus effect reverse Magnus effect tomographic PIV |
| title | Comparing the Aerodynamic Behaviour of Real Footballs to a Smooth Sphere Using Tomographic PIV |
| title_full | Comparing the Aerodynamic Behaviour of Real Footballs to a Smooth Sphere Using Tomographic PIV |
| title_fullStr | Comparing the Aerodynamic Behaviour of Real Footballs to a Smooth Sphere Using Tomographic PIV |
| title_full_unstemmed | Comparing the Aerodynamic Behaviour of Real Footballs to a Smooth Sphere Using Tomographic PIV |
| title_short | Comparing the Aerodynamic Behaviour of Real Footballs to a Smooth Sphere Using Tomographic PIV |
| title_sort | comparing the aerodynamic behaviour of real footballs to a smooth sphere using tomographic piv |
| topic | football soccer aerodynamics Magnus effect reverse Magnus effect tomographic PIV |
| url | https://www.mdpi.com/2504-3900/49/1/150 |
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