Cyclist Aerodynamics: A Comparison Between Wind Tunnel Tests and CFD Simulations for Helmet Design
- 412 Downloads
During the last decades, a particular attention has been paid to the aerodynamic optimization of professional bike riders and their equipment, with a large use of experimental investigation as well as numerical simulations. Extensive studies have been carried out in wind tunnels all over the world by professional cycling teams to study the best set-up for time trial competitions. The standard approach is to compare different parts of the equipment or different positions and find out the optimized configuration by a trial and error procedure. This paper presents an attempt of helmet design based on CFD calculations and experimental validation of numerical results with a new experimental set-up able to measure the surface pressure on a real helmet.
KeywordsCyclist aerodynamics CFD calculations Wind tunnel tests Helmet design Time trial competitions
The activity presented in the paper is part of the research activity developed with MET helmets. We thank the athletes Davide Fumagalli and Emilio Previtali.
- Gibertini G, Campanardi G, Grassi D (2011) Cycling aerodynamics: a complex problem. In: 13th international conference on wind engineering (ICWE 2013)Google Scholar
- Sidelko S (2007) Benchmark of aerodynamic cycling helmets using a refined wind tunnel test protocol for helmet drag research. Ph.D. thesis, Massachusetts Institute of TechnologyGoogle Scholar
- Belloli M, Giappino S, Robustelli F, Somaschini C (2016) Drafting effect in cycling: investigation by wind tunnel tests. In: 11th conference of the international sports engineering association, ISEA 2016, pp 38–43Google Scholar
- Belloli M, Giappino S, Schito P, Tenni M (2014) Numerical and experimental optimization of a time-trial cycling helmet. In: INVENTO 2014, June 2014, Genova, ItalyGoogle Scholar