Bluff body research reveals the mechanics of surface pattern on drag reduction and sound attenuation
In cycling sports, the aerodynamic skinsuit plays a significant role as reductions of the aerodynamic drag would improve athlete's performance. Recently, the research team explored the design principles of the aerodynamic skinsuit. By conducting cylinder wind tunnel tests within the range of cycling speed based Reynolds numbers, the research team found the sports fabric with longitudinal grooves can achieve a drag reduction over 50% and a maximum noise attenuation over 15dB. The research team also linked such variations to the near-field flow measurements in different flow regimes, revealing the fluid mechanics behind them. This research enables the design of the best aerodynamic skinsuit, helping athletes to improve their performance. The work is published in the reputed fluid dynamics journal Physics of Fluids. https://doi.org/10.1063/5.0070959