Water droplet deformation and breakup in the vicinity of the leading edge of an incoming airfoil

García, Adelaida García Magariño

doi:10.20868/upm.thesis.44231

Cited by 1 publication

(1 citation statement)

References 83 publications

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“…It is important to note that MVD, LWC and TAT parameters define when aircraft icing is likely to occur [38,39]. For the icing phenomenon to happen, the ideal limits are the following: total air temperature from 0 • C to −10 • C, median volumetric diameter greater than 10 µm, and liquid water content greater than 0.5 g/m 3 .…”

Section: Initial Considerationsmentioning

confidence: 99%

Contributions to Image Transmission in Icing Conditions on Unmanned Aerial Vehicles

Rodríguez Marco,

Sánchez Rubio,

Martínez Herráiz

et al. 2023

Drones

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In terms of manned aircraft, pilots usually detect icing conditions by visual cues or by means of ice detector systems. If one of these cues is seen by the crew or systems detect icing conditions, they have to apply the evasive procedure as defined within the aircraft flight manual (AFM). However, as regards unmanned aircraft, there are not pilots on board and, consequently, nobody can act immediately when icing conditions occur. This article aims to propose new techniques of sending information to ground which make possible to know the aircraft performance correctly in icing conditions. For this goal, three contributions have been developed for the unmanned aircraft Milano. Since icing conditions are characterized quantitatively by the droplet size, the liquid water content, and the total air temperature, when these parameters are between certain limits ice formation on aircraft may occur. As a result of these contributions, in that moment, high-quality images of the wing leading edge, tail leading edge and meteorological probes will be captured and sent to ground making possible that remote pilots or artificial intelligent (AI) systems can follow the appropriate procedures, avoid encounters with severe icing conditions and perform real-time decision making. What is more, as information security is becoming an inseparable part of data communication, it is proposed how to embed relevant information within an image. Among the improvements included are image compression techniques and steganography methods.

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Section: Initial Considerationsmentioning

confidence: 99%