Abstract The upcoming EURO 7 regulation requires significant CO2 reductions in road freight, targeting towing vehicles and semitrailers. Semitrailers face a 10% reduction goal, with limited gains from aerodynamic tweaks and low rolling resistance tires, making electrification the most promising solution. …

While modern wind turbines have become by far the largest rotating machines on Earth with further upscaling planned for the future, a renewed interest in small wind turbines (SWTs) is fostering energy transition and smart grid development. Small machines have traditionally not received the same level …

The dynamic inflow effect describes the unsteady aerodynamic response to fast changes in rotor loading due to the inertia of the wake. Fast changes in turbine loading due to pitch actuation or rotor speed transients lead to load overshoots. The phenomenon is suspected to be also relevant for gust situations; …

In this presentation a new EA Wind Task is presented, i.e. an international cooperative project on the field of aerodynamic wind turbine measurements organised under auspices of the IEA

Sub-scale Flight Testing (SFT) is potentially useful in predicting aircraft flight behaviour, especially in the case of unconventional designs for which legacy information is unavailable and wind tunnel tests are unable to predict aircraft dynamics. A necessary condition for SFT is the design of properly …