Die Position des Übergangs zwischen laminarer und turbulenter Strömung beeinflusst die aerodynamische Effizienz der Rotorblätter von Windenergieanlagen. Ein etabliertes Messprinzip für die Visualisierung der Strömung ist die Infrarot-Thermografie, die Messungen an in Betrieb befindlichen Windenergieanlagen ermöglicht, einschließlich Lokalisierung des Strömungsübergangs. Hier werden die Möglichkeiten einer Bayesschen Bildauswertung zur Nutzung von Vorwissen untersucht, um die Messqualität insbeso...

Network creation games are well-established for investigating the decentralized formation of communication networks, like the Internet or social networks. In these games, selfish agents that correspond to network nodes strategically create costly edges to maximize their centrality in the formed network. We depart from this by focusing on the simpler objective of maximizing the 2-neighborhood. This seems natural for social networks, as an agent’s connection benefit is typically provided by her ne...

Abstract Infrared thermography (IRT) can be used to visualize the boundary layer flow on wind turbines – during operation and with no need of blade or turbine modification. So far, no other technique is capable of this. IRT uses the temperature difference between the rotor blade and the surrounding air to visualize the inherent difference in convective heat transfer, i. e. the resulting difference in blade surface temperature, which corresponds to the different boundary layer flow...

Multi-energy systems have emerged as a potential solution to tackle the flexibility challenges caused by the integration of renewable energy resources. However, the uncertainty of multi-energy load growth and long-term energy cost fluctuations considerably affect the planning and deployment of such energy systems. Furthermore, the transition from fossil energy sources and traditional energy carriers, such as natural gas, to power-based systems is expected to intensify. Therefore, future energy s...

Abstract Analyzing the airflow around wind turbines during operation requires an in-process-capable measurement approach that functions without modification of the rotor blade. Infrared–thermographic flow visualization is such a measurement approach. However, its measurement capabilities on wind turbines in operation are highly weather-dependent. Therefore, to understand the expected flow visualization quality in non-laboratory conditions, the dependence of the achievable contrast...