Numerical analysis of the drag coefficient of a motorcycle helmet

• Autorzy: Czyż Z. , Karpiński P. , Sevdim T.

Identyfikatory

DOI

doi:10.23743/acs-2018-02

• Języki publikacji: EN

Abstrakty

EN

The paper discusses a numerical investigation, using a CFD tool, ANSYS FLUENT, of drag acting on a motorcycle helmet. The simulations were performed on a model of a helmet downloaded from a free CAD model library. A solid model enabled us to generate a mesh, to define boundary conditions and to specify a model of turbulence. Accordingly, the values of forces acting on individual sections of the helmet were obtained and the coefficients of aerodynamic drag were calculated. The test results can be used to optimize the shape of the existing motorcycle helmet construction and to study the impact of generated drag forces on reaction forces affecting a motorcyclist’s body.

Słowa kluczowe

EN

numerical analysis; CFD; drag coefficient; motorcycle helmets

PL

analiza numeryczna; CFD; współczynnik oporu; kaski motocyklowe

• Wydawca: Polskie Towarzystwo Promocji Wiedzy ; Lublin University of Technology
• Czasopismo: Applied Computer Science
• Rocznik: 2018
• Tom: Vol. 14, no 1
• Strony: 16--26
• Opis fizyczny: Bibliogr. 10 poz., fig., tab.

Twórcy

autor

Czyż Z.

• Department of Thermodynamics, Fluid Mechanics and Aviation Propulsion Systems, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland, [phone]

autor

Karpiński P.

• Department of Thermodynamics, Fluid Mechanics and Aviation Propulsion Systems, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland, [phone]

autor

Sevdim T.

• Department of Mechanical Engineering, Faculty of Engineering and Natural Sciences, Altinbas University, Mahmutbey Mah, Mahmutbey Dilmenler Cad 26, 34218 Bagcılar/Istanbul, Turkey

Bibliografia

• 1. Alam, F., Chowdhurya, H., Zhi Weia, H., Mustarya, I., & Zimmerb, G. (2014). Aerodynamics of ribbed bicycle racing helmets. Procedia Engineering, 72, 691–696. doi:10.1016/j.proeng.2014.06.117
• 2. Beaumont, F., Taiara, R., Polidori, G., Trenchard, H., & Grappe, F. (2018). Aerodynamic study of time-trial helmets in cycling racing using CFD analysis. Journal of Biomechanics, 67, 1–8. doi:10.1016/j.jbiomech.2017.10.042
• 3. Blocken, B., & Toparlar, Y. (2015). A following car influences cyclist drag: CFD simulations and wind tunnel measurements. Journal of Wind Engineering and Industrial Aerodynamics, 145, 178–186. doi:10.1016/j.jweia.2015.06.015
• 4. Blocken, B., Defraeye, T., Koninckx, E., Carmeliet, J., & Hespel, P. (2013). CFD simulations of the aer-odynamic drag of two drafting cyclists. Computers & Fluids, 71, 435–445. doi:10.1016/j.compfluid.2012.11.012
• 5. Blocken, B., Toparlar, Y., & Andrianne, T. (2016). Aerodynamic benefit for a cyclist by a following motorcycle. Journal of Wind Engineering and Industrial Aerodynamics, 155, 1–10. doi:10.1016/j.jweia.2016.04.008
• 6. Brownlie, L., Kyle, C., Carbo, J., Demarest, N., & Harber, E. (2009). Streamlining the time trial apparel of cyclists: the Nike Swift Spin project. Sports Technology, 2, 53–60. doi:10.1002/jst.12
• 7. Brownlie, L., Ostafichuk, P., Tews, E., Muller, H., Briggs, E., & Franks, K. (2010). The wind-averaged aerodynamic drag of competitive time trial cycling helmets. Procedia Engineering, 2, 2419–2424. doi:10.1016/j.proeng.2010.04.009
• 8. Fernandes, F. A., & Alves de Sousa, R. J. (2013). Motorcycle helmets – a state of the art review. Accident Analysis & Prevention, 56, 1-21. doi:10.1016/j.aap.2013.03.011
• 9. Rice, T. M., Troszak, L., Ouellet, J. V., Erhardt, T., Smith, G. S., & Tsai, B.W. (2016). Motorcycle helmet use and the risk of head, neck, and fatal injury: Revisiting the Hurt Study. Accident Analysis and Prevention, 91, 200–207. doi:10.1016/j.aap.2016.03.002
• 10. United Nations Economic Commission for Europe. (2016). The United Nations Motorcycle Helmet Study, United Nations, New York and Geneva. doi:10.18356/82cd1e4b-en

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).