Latest from the Blog
**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”
**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”
Announcing the 1st international workshop on icing of unmanned aircraft. The UAV icing workshop will be held in Trondheim (Norway) and online during November 29-30, 2022. The workshop will be hosted by the UAV Icing Lab at the Norwegian University of Science and Technology (NTNU). The objective of this workshop is to provide a platformContinue reading “1st UAV Icing Workshop announced”
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 one of our recent icing wind tunnel experiments, the NTNU UAV Icing Lab investigated if ice fragments are a hazard to UAV propellers. The resulting high-speed video footage shows the moment ice impacts the propeller blades. Here is a small preview of the footage. When an aircraft flies into special meteorological weather conditions, iceContinue reading “Can ice fragments destroy a UAV propeller?”
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!
The Norwegian University of Science and Technology (NTNU) has signed a collaboration agreement with the German Aerospace Center (DLR). The scope of the agreement is to conduct joint research in the field of icing on unmanned aerial systems (UAVs). The collaboration is going to be pivoting around the NTNU UAV Icing Lab the the DLRContinue reading “Cooperation with the German Aerospace Center (DLR)”
**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?”
This summer, the UAV Icing Lab went on a joint campaign with UBIQ Aerospace at the icing wind tunnel facility of the Technical Research Centre of Finland (VTT). The main goal of the campaigns was to do experiments on ice protection systems for UAVs and to study the effects of icing on propellers. Among otherContinue reading “Icing wind tunnel experiments on UAV ice shedding”
**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?”
We often hear the following question: “How often do drones actually encounter icing conditions?”. This is a very good question – and until recently we had only vague answers. Usually, we would refer to two reports in the literature that discuss icing frequencies for the US and the rest of the world. These two reportsContinue reading “How often do drones encounter icing conditions?”
**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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