Acta Mechanica Slovaca 2018, 22(2):34-37 | DOI: 10.21496/ams.2018.015

Measurement of Surface Roughness of Volleyball

Jan Dumek1, Jan Urban2
1 Department of Fluid Dynamics and Thermodynamics, Faculty of Mechanical Engineering, Czech Technical University in Prague, Prague, Czech Republic, Technická 4, Prague 6 - Dejvice,166 07
2 Department of Machining, Process Planning and Metrology, Faculty of Mechanical Engineering, Czech Technical University in Prague, Prague, Czech Republic; Technická 4, Prague 6 - Dejvice,166 07

Main investigations are focused to measurements of all forces and moments acting on the rotating volleyball, such as drag FD, lift FL, side force FS, moment of roll MX, pitch MY and yaw MZ. Based on previous first results roughness of surface is an important quantity to study. Description of measurement of surface roughness of volleyball is presented in the article. Devices used in the measurement are noted. Results of the measurement are discussed and meaning of the results for aerodynamic forces acting on volleyball is taken in consideration.

Keywords: aerodynamics; measurement; roughness; volleyball.

Published: June 15, 2018  Show citation

ACS AIP APA ASA Harvard Chicago Chicago Notes IEEE ISO690 MLA NLM Turabian Vancouver
Dumek, J., & Urban, J. (2018). Measurement of Surface Roughness of Volleyball. Acta Mechanica Slovaca, 22(2), 34-37. doi: 10.21496/ams.2018.015
Share...
Download citation
  • BibTeX (.bib)
  • Bookends (.ris)
  • EasyBib (.ris)
  • EndNote (.enw)
  • EndNote 8 (.xml)
  • ISI WoS (.isi)
  • Medlars (.medlars)
  • Mendeley (.ris)
  • MODS (.xml)
  • Papers (.ris)
  • RefWorks (.txt)
  • RefManager (.ris)
  • RIS (.ris)
  • MS Word (.xml)
  • Zotero (.ris)
    • Open full article

    References

    1. Dumek, J., Šafařík, P., Pátek, Z.: Description of experimental setting: volleyball in the wind tunnel, Proceedings of Students' Work in the Year 2017/2018, CTU in Prague, Prague, 2018 - in the editorial office
    2. Dumek, J., Šafařík, P.: Complete description of forces acting on a flying beach volleyball, Experimental Fluid Mechanics 2017, 21.11.2017 - 24.11.2017, Mikulov, Czech Republic
    3. Dumek, J., Šafařík, P., Pátek, Z., Asai, T.: On the flight of volleyball, Conference Topical Problems of Fluid Mechanics, Prague, 2018 - in Šimurda, D., Bodnár, T.: Conference Proceedings, Topical problem of Fluid mechanics 2018, Institute of Thermomechanics AS CR, v.v.i., Prague, ISSN 2336 - 7350 Go to original source...
    4. Asai, T., Kazuya, S.: A Study of knuckling effect of soccer ball (P106), str. 555 - 562 in: The Engineering of Sport 7 - Vol. 1, Springer-Verlag France, Paris, 2008. https://doi.org/10.1007/978-2-287-09411-8_65 Go to original source...
    5. Hörner, S.: Tests of spheres with reference to Reynolds number, turbulence and surface roughness, NACA Report No. 777, Washington, 1935, at: https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19930094640.pdf
    6. Achenbach, E.: The effects of surface roughness and tunnel blockage on the flow past spheres, Journal of Fluid Mechanics, vol. 65, part 1, pp 113 - 125, Great Britain,1974, https://doi.org/10.1017/S0022112074001285 Go to original source...
    7. idt DIN EN ISO 4287:1997+Cor.1:1998: Geometrical product specifications (GPS) - Surface texture: Profile method - Terms, definitions and surface texture parameters. https://doi.org/10.3403/01161286U Go to original source...

    This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.


    Return to the content