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Impact of wheel rotation on the aerodynamic drag of a time trial cyclist KU Leuven
Aerodynamic drag is the main resistive force in cycling at high speeds and on flat terrain. In wind tunnel tests or computational fluid dynamics simulations, the aerodynamic drag of cycling wheels is often investigated isolated from the rest of the bicycle, and sometimes in static rather than rotating conditions. It is not yet clear how these testing and simulating conditions influence the wheel aerodynamic performance and how the inclusion of ...
Modeling of Wheel Aerodynamics and its Impact on Cycling KU Leuven
Aerodynamic resistance is a core focus in cycling as it is responsible for about 90% of the total resistance at speeds larger than 40 km/h on flat terrain. The aerodynamic performance of both wheels is a critical factor in the overall cycling performance, as the wheels can be responsible for up to about 10% of the total cyclist-bicycle drag, and races can be decided by very small time differences. Past research on cycling wheel aerodynamics ...
CFD simulations of an isolated cycling spoked wheel: Impact of the ground and wheel/ground contact modeling KU Leuven
Spoked wheels are the most frequently used wheel type in road cycling competitions and their aerodynamic optimization is crucial for cyclist performance. The aerodynamic performance of wheels is generally analyzed by wind tunnel tests or CFD simulations for isolated wheels. There is a large number of options to model the wheel/ground contact in CFD simulations, including different clearances between tire and ground and different heights of solid ...