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; …

Around 60% of drinking water in the Netherlands is from groundwater, often containing high concentrations of dissolved iron. This is generally removed by aeration, which is an important process in both drinking- and waste water treatment. The known disadvantages are high energy consumption relative to …

A design report of the design of an energy efficient garden woodstove

What’s online video today, fifteen years into its exponential growth? In the age of the smart phone, video accompanies, informs, moves, and distracts us. What started off with amateur prosumers on YouTube has spread to virtually all communication apps: say it with moving images. Are you addicted yet? …

Dynamic stall phenomena carry the risk of negative damping and instability in wind turbine blades. It is crucial to model these phenomena accurately to reduce inaccuracies in predicting design driving (fatigue and extreme) loads. Some of the inaccuracies in current dynamic stall models may be due to …

Dynamic stall phenomena carry the risk of negative damping and instability in wind turbine blades. It is crucial to model these phenomena accurately to reduce inaccuracies in predicting design driving (fatigue and extreme) loads. Some of the inaccuracies in current dynamic stall models may be due to …

Natalie Bookchin’s work is synonymous with the Video Vortex network and the rise of YouTube. Whereas we got to know each other’s work in the turbulent net.art late nineties years, this particular story started with a DVD I got from Natalie, containing The Trip (2008), a video collection of early YouTube …

The Hungarian artist Judit Kis was one of the artists who gave a performance during Video Vortex #12 in Malta, in September 2019. This is where I was introduced to her very personal work. In the following months I engaged with her work and decided to approach her for an (email) interview. In an artistic …

README.first is a bilingual collection of mini-essays, published in the run up to the Plokta filmfestival. We’ve asked writers, researchers, theorists, artists, programmers, and others to pick an online video that functions as a stepping stone for their thought and practice and to comment shortly on …

Horizontal axis wind turbines (HAWTs) experience three-dimensional rotational and unsteady aerodynamic phenomena at the rotor blades sections. These highly unsteady three-dimensional effects have a dramatic impact on the aerodynamic load distributions on the blades, in particular, when they occur at …