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Why we need a special icing severity index for unmanned aircraft

**NEW Publication** Icing severity indices are ameasure for the in-flight icing risk and are an important factor for path and mission planning. Small aircraft, such as unmanned aerial vehicles (UAV) and urban air mobility (UAM) vehicles, are particularly sensitive to icing and thus proper assessment of weather risks is critical. Icing severity is a metricContinue reading “Why we need a special icing severity index for unmanned aircraft”

Challenges for icing CFD and unmanned aircraft

**NEW PUBLICATION** Computational fluid dynamics (CFD) simulation methods are one of the most important design and development tools for aircraft – manned or unmanned. For the challenge of in-flight icing, special icing CFD codes have been developed such as FENSAP-ICE or LEWICE3D. These tools can simulate and predict the behavior of airfoils and aircraft in icingContinue reading “Challenges for icing CFD and unmanned aircraft”

Ice shedding detection and how it helps to operate UAVs in icing conditions

Written by Bogdan Løw-Hansen, PhD candidate. Today, harsh weather conditions and especially icing are a big problem for uncrewed aerial vehicles (UAVs). Several solutions exist, but many require substantial amounts of energy to operate them, which are not always available on smaller UAV platforms. To this end, the UAV Icing Lab at NTNU is currentlyContinue reading “Ice shedding detection and how it helps to operate UAVs in icing conditions”

In the news!

The UAV Icing Lab has been featured in the online magazine NorwegianSciTechNews.com and its Norwegian counterpart, Gemini.no. The article is using a lot of multi-media elements and is aimed at the general public!

Are unmanned aircraft more sensitive to icing compared to manned aircraft?

**NEW Publication** A recent paper investigates the sensitivity of unmanned aircraft to icing in comparison to manned aircraft. Differences in airframe size and airspeed can lead to substantially different icing performance penalties. Think of a “normal” aircraft. Chances are that you are thinking of something that is officially called a “large transport aircraft” – aContinue reading “Are unmanned aircraft more sensitive to icing compared to manned aircraft?”

How is an UAV affected by in-flight icing and can we simulate it accurately?

**NEW MASTER THESIS** One of the master students of the UAV Icing Lab has finished his thesis work. Johannes Oswald conducted his thesis in collaboration with the Institute of Aerodynamics and Gas Dynamics at the University of Stuttgart and the von Karman Institude for Fluid Dynamics. Read more about this research project here. Ice build-upContinue reading “How is an UAV affected by in-flight icing and can we simulate it accurately?”

How much energy is required to prevent ice on UAVs?

**NEW PUBLICATION** In-flight icing on UAVs is a severe hazard that prevents drone operations in bad weather conditions. In order to overcome this limitation, UAVs can be equipped with ice protection systems that mitigate the negative effects of icing. One solution is to heat the exposed surfaces of the aircraft electrically with carbon fiber materials.Continue reading “How much energy is required to prevent ice on UAVs?”

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