@inproceedings{5ec42e76a0514e3696c8912005750ca0,
title = "A Novel Approach for Skin Suit Aerodynamic Optimization Using Local Momentum Deficit",
abstract = "A new approach is introduced to evaluate the potential drag reduction by skin suit design in speed sport. The approach relies upon local flow information measured in the wake of a cyclist mannequin. Lagrangian Particle Tracking is employed to measure the distribution of time-average streamwise velocity in a cross-plane of 30 × 100 cm2 behind the stretched leg of the rider at a range of Reynolds numbers (0.4 × 105 < Re < 2.4 × 105). The expected Reynolds number effect is observed: a general wake narrowing at increasing speed. Unexpected local effects are also identified, which may be due to local variations in geometry of the rider{\textquoteright}s leg. The conservation of momentum within a control volume containing the leg is used showing that the aerodynamic drag of the rider{\textquoteright}s leg can be decreased by application of surface roughness. This outcome is validated by repeated measurements using zigzag tape on the legs{\textquoteright} surface. ",
keywords = "speed sports, cycling aerodynamics, aerodynamic drag optimization, skin suit, drag crisis, Lagrangian Particle Tracking",
author = "Wouter Terra and Andrea Sciacchitano and Fulvio Scarano",
year = "2018",
doi = "10.3390/proceedings2060222",
language = "English",
series = "Proceedings ",
publisher = "MDPI",
number = "6",
editor = "Espinosa, {Hugo G.} and Rowlands, {David R.} and Jonathan Shepherd and Thiel, {David V.}",
booktitle = "Proceedings of the 12th Conference of the International Sports Engineering Association (ISEA 2018)",
address = "Switzerland",
note = "ISEA 2018: 12th Conference of the International Sports Engineering Association 'Engineering of Sport' ; Conference date: 26-03-2018 Through 28-03-2018",
}