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Showing 1 to 8 of 8 for “"glaze ice"”.
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An Experimental Study of the Flowfield on a Semispan Rectangular Wing With a Simulated Glaze Ice Accretion
The effect of a simulated glaze ice accretion on the flowfield of a semispan, reflection-plane, rectangular wing at Re = 1.5 million and M = 0.12 was investigated. A laser Doppler velocimeter was used to map the flowfield on the upper surface of the model in both the clean and iced configurations …
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An investigation of the heat transfer and transport mechanisms which control surface water during glaze ice accretion
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1988.
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Effect of large distributed roughness near an airfoil leading edge on boundary layer development and transition
… and density observed to occur during the initial glaze ice accretion process. Detailed boundary-layer measurements were obtained through the use of hot-wire anemometry at Reynolds numbers of 0.75 $\times$ 10$\sp6$, 1.25 $\times$ 10$\sp6$, and 2.25 $\times$ 10$\sp6$. These measurements included …
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Local flowfield about large distributed roughness elements in a laminar boundary layer
… were typical of those found in initial glaze-ice accretions. For the isolated roughness case, $k$/$\delta$ = 2.5, and at the leading edge of the distributed roughness, $k$/$\delta$ = 3.4. The nominal value of $Re\sb{k}$ for both cases was 3700. The large physical size of the elements …
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An experimental study on the effects of adverse weathers on the flight performance of an Unmanned-Aerial-System (UAS)
… during different segments of each flight. Glaze ice accretion was found to result in the malfunction of pitot static tube causing the loss of air speed data. Furthermore, wing leading edge and propeller icing resulted in rapid increase in the power consumption. It was discovered that ice …
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Flight envelope protection using flap hinge moment measurement
… were tested. These configurations consisted of glaze ice, rime ice, two severities of distributed leading-edge roughness, three-dimensional leading-edge damage, and three-dimensional upper-surface damage. Additionally, the effects of flap deflection and trim tab deflection on the unsteady hinge …
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Lagrangian Parcel Volume method applied to icing surfaces to predict impact efficiency
When trying to predict how and where ice will accrete on an aircraft, engineers first need to be able to track the path and concentration of water particles; this will allow for a better representation of water impingement and ice accretion. This tracking can be accomplished by using either a …
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A Simplified Icing Model for Simulation and Analysis of Dynamic Effects
Ice accretions on aerodynamic surfaces are a major concern during flight. In this research effort, glaze ice is being modeled and its effects on aircraft dynamics analyzed. This type of ice builds up as a clear layer on aerodynamic surfaces and other components such as antennas and intakes. Glaze …